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->''"You watched it. You can't unwatch it!"''
-->-- ''WesternAnimation/{{Futurama}}''

[[BrainBleach Or can you?]]

[[WesternAnimation Western cartoons]], like other AnimatedShows, have their share of moments that no one wants to remember.

----
* A number of fans of ''WesternAnimation/PinkyAndTheBrain'' refuse to acknowledge the spin-off ''WesternAnimation/PinkyElmyraAndTheBrain'', due to viewing Elmyra of ''WesternAnimation/TinyToonAdventures'' as TheScrappy. The show creators themselves didn't seem to like the idea either, since the opening reworked theme contains the line "[[ExecutiveMeddling it's what the network wants]], why bother to complain?"
* ''WesternAnimation/TheLoudHouse'':
** Fans often do this to "No Such Luck", "The Sweet Spot", and "Brawl in the Family", saying that they're too abusive to Lincoln. Relative Chaos is sometimes ignored by Ronniecoln shippers.
** Fans have a [[{{fanon}} tendency]] to depict Luan as lesbian, but [[NoBisexuals rarely ever bisexual]]. In canon, she's only been depicted liking boys. Said boys get quietly ignored by fans in [[FanPreferredCouple exchange for]] [[ShipsThatPassInTheNight Maggie]].
* ''Franchise/{{Ben 10}}'': While there are certainly those who accept the entirety of the original continuity (aka, the first four series) to be canon, the [[BrokenBase fanbase is broken up enough]] that there are a large number of breaking points:
** Beginning with just the Original Series, there were fans who choose to treat "Goodbye and Good Riddance" (a WhatIf episode that had Ben return to Bellwood and be ousted as a superhero) as the show's finale as opposed to "Secrets of The Omnitrix".
** There are fans that rejected the sequel series ''WesternAnimation/Ben10AlienForce'', due to the numerous {{retcon}}s it made; the two most egregious being Gwen and Kevin's powers being made alien in origin, rather than magic or natural mutation, and immediately turning the latter character into a good guy without the presence of a redemption arc.
** There are fans who liked both the original series and ''Alien Force'' but don't consider ''WesternAnimated/Ben10UltimateAlien'' as canon, with explanations inexplicably being both ItsTheSameNowItSucks (too similar to ''Alien Force'' to really be considered a new installment) ''or'' TheyChangedItNowItSucks (what elements that were changed ruined the experience).
** There are fans of the first three series don't consider ''[[WesternAnimation/Ben10Omniverse Omniverse]]'' canon due to its [[DenserAndWackier change of tone]], the character redesigns, and a heavy use of comedy.
*** Gwen fans were especially pissed at her new design. While some fans think it feels more like a natural evolution of her ten year old self from the original series far better than her ''Alien Force''/''Ultimate Alien'' design, others consider it ugly. There are also those who are indifferent to the appeal of the design itself, and more angered that the redesign is so removed from her established teenage design in ''Ultimate Alien'' with no reason other than the appeal to fans of the original series.
** There are fans who love ''Omniverse'' who don't take some episodes as canon. Such as "So Long, And Thanks For All the Smoothies", which while considered a good episode by said fans, has an ending where [[spoiler:Ben [[ReplacementGoldfish is forced to recreate the entire universe after it was destroyed, implying that everyone from the previous three series is actually now dead and replaced with identical copies]]. Naturally, "Universe vs. Tennyson", in which Ben is put on trial for committing the act, is included with that.]] Another is the "Showdown" two-parter of the third season, which created a major PlotHole: [[spoiler:eleven-year-old Ben is obsessed with a new alien, Feedback. Malware, an evil alien entity, rips the alien out and destroys it. After Ben kills Malware, it cuts back to present day and Ben states that, since then, he can't rescan Feedback's species. Considering that his original Omnitrix was destroyed at the end of ''[[WesternAnimation/Ben10AlienForce Alien Force]]'', such a problem would not exist with the newer model.]]
** Some ''Omniverse'' fans don't consider the story arcs that followed that as canon since they feel like that the villains that were introduced (or in the case of the Incurseans, reintroduced) after Khyber and Malware were [[ReplacementScrappy not as good as those two]].
** Fans of Helen, Manny and Alan would disregard the VoodooShark twist in the Rooters story arc that they were actually [[spoiler:humans who were experimented with alien powers than being HalfHumanHybrids]]. Some fans who came to like Kevin as a good guy would also disregard the controversial {{Retcon}} in which [[spoiler:his father was never a Plumber]] as canon.
** Similarly to the ''Omniverse'' showrunners themselves, there are fans who don't consider parts of ''Alien Force'' and ''Ultimate Alien'' as canon, such as Eon.
** When it comes to shipping, Ben/Julie and Ben/Ester shippers consider the confirmation that Ben and Kai became the OfficialCouple in the end of the series as non-canon.
** Several ''WesternAnimation/TheSecretSaturdays'' fans consider the crossover episode "TGIS" as non-canon, due to none of that show's staff having any involvement.
* ''WesternAnimation/TheCritic'': Most fans of the TV series were disappointed with the webisodes that followed a few years after the show's cancellation. [[http://www.retrojunk.com/content/article/7731/index/ This fan review]] should provide further explanation.
* ''WesternAnimation/TheRenAndStimpyShow'':
** The Games Animation episodes get this within the original series. Aside from Ren [[TookALevelInJerkass becoming more of a jerk]], there's also weaker animation than in the Spumco episodes, and the fact that Creator/JohnKricfalusi [[OnlyTheCreatorDoesItRight had no involvement in their creation]].
** According to most fans, ''[[WesternAnimation/RenAndStimpyAdultPartyCartoon Adult Party Cartoon]]'' '''never happened'''. It's rather despised for turning the BlackComedy and VulgarHumor of the original [[UpToEleven far beyond eleven]] to the point that [[CrossesTheLineTwice it crosses lines that were previously thought to be theoretical]], becoming completely disturbing in the process. You know it's bad when even the Games Animation episodes from the original show (which are often disliked by fans due to making Ren more of a {{jerk|ass}} than he already was) are considered masterpieces when compared to ''Adult Party Cartoon''. ''[[Recap/RenandStimpyAPC1x02RenSeeksHelp Ren Seeks Help]]'' ''especially'' gets this due to the large amounts of NightmareFuel on top of the previously mentioned issues.
* Fans of ''WesternAnimation/TheFairlyOddParents'' [[BrokenBase are divided on]] when the series began to suck, and therefore on which seasons to consider Discontinuity. The most common places are listed below:
** Even Poof fans hate Sparky, Timmy's new magical talking fairy dog. There's also a new girl named Chloe Carmichael appearing in the tenth season (with Poof mostly absent in favor of her; Sparky [[PutOnABus was removed due to negative reception]]) and fans are not pleased. Instead of bringing back fan-favorites, they're demoting almost everyone to extras (including characters like Trixie and Tootie) and creating new ones to spice up the show.
** Some fans go even further, and ignore everything after the ''WesternAnimation/ChannelChasers'' special in Season 4. The reason given is usually that the special’s DistantFinale (in which Timmy is an adult and [[spoiler:doesn’t remember ever having fairy godparents but looks back on his childhood fondly, while his children now have Cosmo and Wanda]]) is somehow cheapened by there being later episodes. Another reason is that soon afterward, and continuing for much of Season 5, Timmy was derailed into a completely selfish and unlikeable JerkAss, and the rest of the cast are also perceived as having suffered {{Flanderization}} as well.
** For a time after the last part of the ''WesternAnimation/{{Wishology}}'' trilogy aired during Season 7, many fans ignored the last few minutes (in which [[spoiler:Jorgen erases the memories of the events from anyone who isn’t Timmy or his fairies]]) and treated the special as the GrandFinale, with [[spoiler:Timmy’s fairies becoming public knowledge]]. This fell by the wayside after the fanbase became more aware that the writers never intended for the special to be any sort of series finale.
** The fanbase is all but unanimous in disregarding the live-action television movies, featuring an adult Timmy who is still inexplicably in fifth grade[[note]]admittedly, for the first part of the first movie only[[/note]] and still has his godparents, because of the inherent IdiotPlot, [[TheyWastedAPerfectlyGoodPlot wasting the plots that aren’t idiotic]], and, as of the third movie, [[spoiler:contradicting the ending of the beloved ''Channel Chasers'' special]].
** Aside from ignoring entire seasons, fans are adamant that the Season 5 episode “It’s A Wishful Life” never happened, on account of being nothing more than one eleven-minute long TakeThat and HumiliationConga towards Timmy, who is told that he is directly responsible for every bad thing that has happened in his friends’ and family members’ lives, (even the ones for which his involvement would make no sense) and that it would be better if he were never born. Since [[FamilyUnfriendlyAesop the episode could theoretically be interpreted as having a pro-suicide message]], it is not at all surprising that the network and the writers themselves [[OldShame agree with the fans on this one]], and rarely if ever air the episode in reruns.
** Trixie fans usually ignore her post-{{flanderization}} personality and keep her in her relatively nicer early episodes persona.
* ''WesternAnimation/GravityFalls'':
** Some fans like to pretend the ending, where [[spoiler:Stan quickly recovers his memories]], did not happen at all because they feel it ultimately rendered [[spoiler:Stan's HeroicSacrifice]] meaningless.
** Other fans act as if "Roadside Attraction" didn't exist. Not only because they see it as an unnecessary BreatherEpisode in the middle of the show's final story arc (the episode [[spoiler:didn't feature Ford]] or allude to the main plot whatsoever), but because it had what is often regarded as the most BrokenAesop in the series. For the record, Disney aired the episode out of production order.
** There are some fans who dislike that Dipper's name is actually a nickname, feeling that "Dipper" sounds too cool. With the AllThereInTheManual reveal that he's named [[spoiler:"[[ThemeTwinNaming Mason]]"]] many fans have also ignored that.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', due to its large, nerdy, and rather {{broken|base}} fanbase, has a few points after which some groups of fans just ignore developments:
** The "purist" or "Originalist" contingent of the fandom like to ignore all episodes produced without any creative input from Creator/LaurenFaust. The cut-off here is one of two places: either after "[[Recap/MyLittlePonyFriendshipIsMagicS2E1TheReturnOfHarmonyPart1 Return]] [[Recap/MyLittlePonyFriendshipIsMagicS2E2TheReturnOfHarmonyPart2 of Harmony]]" (the final episode Lauren directly supervised from start to finish), or after "[[Recap/MyLittlePonyFriendshipIsMagicS2E13HearthsWarmingEve Hearth's-Warming Eve]]" (the final script Lauren personally approved).[[note]][[Recap/MyLittlePonyFriendshipIsMagicS2E11FamilyAppreciationDay "Family Appreciation Day"]] and [[Recap/MyLittlePonyFriendshipIsMagicS2E12BabyCakes "Baby Cakes"]] both aired after HWE, but came earlier in production, meaning Lauren approved the final scripts for those too.[[/note]] Still others accept all of the first two seasons (a few of its episodes grudgingly), but ignore everything from [[Recap/MyLittlePonyFriendshipIsMagicS3E1TheCrystalEmpirePart1 "The Crystal Empire"]] onwards due to it and all future episodes having absolutely no involvement from either Lauren or original head writer Rob Renzetti. Even some episodes Lauren ''did'' work on receive this treatment due to being unpopular, like [[Recap/MyLittlePonyFriendshipIsMagicS1E15FeelingPinkieKeen "Feeling Pinkie Keen"]] or [[Recap/MyLittlePonyFriendshipIsMagicS1E21OverABarrel "Over A Barrel"]].
** Some bronies pretend "The Mysterious Mare-Do-Well" never happened [[CluelessAesop due to how badly it handled its lesson on humility]] and how [[JerkassBall every character in that episode were uncharacteristically complete jerks]].
** Unrelated to the Purism arguments, a large portion of the fandom – especially [[TagalongKid Spike]] fans – utterly reject [[Recap/MyLittlePonyFriendshipIsMagicS3E10SpikeAtYourService "Spike At Your Service"]] due to its total disregard for the little guy's established character traits, helped by WordOfGod admitting that the original script had a justification for this (he was nervous while hanging around his crush, causing him to fail at tasks) that the final one didn't have (which swapped his crush for a different character). This same portion of fans also pretends that [[Recap/MyLittlePonyFriendshipIsMagicS5E10PrincessSpike "Princess Spike"]] never happened, due to it not only reusing the basic plot of "Just For Sidekicks", but also having the ButtMonkey comedy in the episode derive from him [[NoGoodDeedGoesUnpunished just doing his job]] and a good dose of IdiotPlot as opposed to the LaserGuidedKarma he took in "Just For Sidekicks".
** There are some fans who like to pretend the series ended with the SeriesFauxnale "Magical Mystery Cure", which let them ignore the even more polarizing seasons that came out afterwards.
** The first ''[[WesternAnimation/MyLittlePonyEquestriaGirls2013 Equestria Girls]]'' movie got this from a large chunk of the fanbase for turning the young adult ponies into teenage humanoids and placing them in a HighSchoolAU setting. As a result of this, and misinterpreting showrunner Meghan [=McCarthy's=] statement that the movie would not affect the continuity of Season 4[[note]]WordOfGod says that both exist in the same continuity, but to prevent ContinuityLockOut, events in ''WesternAnimation/MyLittlePonyEquestriaGirls'' films and specials will never impact things in Equestria, and the main show will never directly reference the human world[[/note]], these fans were unhappy when the pony version of movie-original character Flash Sentry, who was seen as a RomanticPlotTumor by many, made a cameo in [[Recap/MyLittlePonyFriendshipIsMagicS4E11ThreesACrowd "Three's A Crowd"]] as Cadence's bodyguard. Although they were temporarily quelled by staff insisting his inclusion was an animator's decision rather than story decision, a second Flash cameo (in a one-line speaking role this time) during [[Recap/MyLittlePonyFriendshipIsMagicS4E25TwilightsKingdomPart1 "Twilight's Kingdom"]] caused these fans to absolutely lose it.
** The first episode of Season 4, "Princess Twilight Sparkle" had some contentious developments. "[[Recap/MyLittlePonyFriendshipIsMagicS4E1PrincessTwilightSparklePart1 Part 1]]" implied the entire series up until that point had taken place within a single year, which lead to a lot of {{Continuity Snarl}}s and broke WillingSuspensionOfDisbelief, as much of the fanbase assumed that everything had been taking place over the course of at least three years. "[[Recap/MyLittlePonyFriendshipIsMagicS4E2PrincessTwilightSparklePart2 Part 2]]" got flak for showing the confrontation between Princess Celestia and [[SuperpoweredEvilSide Nightmare Moon]] was over in minutes and before the latter did anything worse then briefly KO Celestia. Many fans ignore this fight since Nightmare Moon's [[FamedInStory in-universe infamy]] and [[TheAtoner Princess Luna's guilt]] over it [[FridgeLogic doesn't make sense]] in light of her doing so little, [[http://sonikku001.deviantart.com/art/Past-Sins-551713735 as parodied here]].
** Some fans like to think everything that happened after [[BaseBreakingCharacter Starlight Glimmer]] joined The Mane Cast never happened.
** Many fans saw Applejack's stetson as something of a TragicKeepsake, with plenty thinking of it as one that belonged to either [[ParentalAbandonment her deceased father or mother]], and was passed down to her. She's always seen wearing it, and many fan works had been produced with the idea in mind. Then came [[Recap/MyLittlePonyFriendshipIsMagicS4E17SomeponyToWatchOverMe an episode]] which showed Applejack to have an entire closet full of identical hats which promptly {{Jossed}} all of that. Some fans chose to believe that the one she wears might still be a keepsake, but then [[Recap/MyLittlePonyFriendshipIsMagicS5E17MadeInManehattan Made In Manehattan]] happened, where she isn't remotely bothered by said hat being shredded. Naturally, there are fans that ignore these moments. A later flashback episode does show that her father owned an identical stetson, however, meaning the tragic keepsake element ''might'' at least be there in spirit.
** Season 4's finale ''Twilight's Kingdom'' left such an impact for ''Friendship Is Magic'' and had such a massive Status Quo shattering event on par if not bigger than ''Magical Mystery Cure'', that it caused even ''more'' fans especially who were already put on the fence for Season 3's finale, to ignore everything that came afterwards. Seasons 5 and beyond are exceptionally polarizing for various reasons, but "Twilight's Kingdom" is pointed to as a big reason why it is. Its the epitome of a ToughActToFollow for certain fans, who believe that anything the show does from then on will never be able to match it. With Seasons 6 and 7 getting it particularly rough, being widely regarded as just [[SoOkayItsAverage mediocre]] seasons overall.
** Due to the tendency for G4 ''MLP'' merchandise to significantly deviate from the show, fanon discontinuity may also occur between fans of the show and fans of TheMerch. This commonly occurs with toys in particular. On one hand, fans of the show often disregard details and backstories of the toys as they are thought to be written by third parties who seemingly have spotty knowledge of the show, while fans of the toys view the toy line's attempts to be more show accurate as moves to pander to more casual adult fans of the show, among other reasons.
** Due to quite a few {{Continuity Snarl}}s and some controversial at best issues ([[DisContinuity/ComicBooks see here for specifics]]), the IDW comics are often considered to take place in an alternate continuity from the show, if they get acknowledged at all. Show staff being [[https://derpibooru.org/831106 very careful not to give a straight answer]] and ''Shadow Play'' directly {{Retcon}}ning the events that led to the Sirens being banished to the human world hasn't helped.
** After Flurry Heart was born, Celestia has a line implying that she is the first alicorn ever born. This upset the fandom, as most fans had always thought that Celestia and Luna were "natural alicorns", unlike Cadance and Twilight. The line is ambiguous enough to have several interpretations, so many fans went with the interpretation that they were born alicorn.
* ''Franchise/MyLittlePony'':
** When nostalgic 80s kids and bronies alike think of or draw Megan from the original ''Franchise/MyLittlePony'' cartoons, they tend to ignore her TeamMom interpretation in ''WesternAnimation/MyLittlePonyAndFriends'' in exchange for her ''WesternAnimation/MyLittlePonyTVSpecials'' version, most specifically the ''Rescue from Midnight Castle'' one.
** Fans also easily "forget" that Megan has siblings, especially Molly.
** Core 7 and especially "G3.5" is generally regarded as never happening. It completely changed the character of Rainbow Dash (along with scrapping her British accent) and removed every pony besides seven (thus the FanNickname "Core 7"). G3.5 is regarded as an ugly transition period between G3 and G4 that is ignored by everyone. The only positive aspect to fans is Toola Roola, who is a mild EnsembleDarkhorse.
* ''WesternAnimation/{{Gargoyles}}'' season three, "The Goliath Chronicles". The writing staff changed completely and had no grasp of series continuity. Most noticeable in the season's second episode, 'Ransom', where [[MamaBear Fox]] is easily restrained by a human thug while her son is kidnapped and later reduced to crying in a chair, clutching his teddy bear, when in the previous seasons, she was established as a deadly ex-mercenary who fought and nearly defeated a nigh-all-powerful Fairy King with previously-unknown magical powers a few hours of giving birth. [[WordOfGod Greg Weisman]] himself points this ''very'' thing out when he's criticizing this episode, which make sense considering how much effort the original show made to make strong characters ACTUALLY strong...
* ''Franchise/GIJoe'' fans often do not count the DIC series as canon because of its inferior writing. And many fans tend to ignore everything that happened [[WesternAnimation/GIJoeTheMovie after Cobra's failed attempt to blow up the Statue of Liberty]].
* ''WesternAnimation/SouthPark'':
** A majority of fans wish that the {{Two Part Episode}}s "[[Recap/SouthParkS15E7YoureGettingOld You're Getting Old]]" and "[[Recap/SouthParkS15E8AssBurgers Ass Burgers]]" NEVER happened.[[note]] The irony is that the latter was itself a CanonDiscontinuity[=/=]{{Retcon}} of the former.[[/note]]
** Mr. Garrison's sex change gets this treatment, as many thought it wasn't very funny, added ''nothing'' to his/her character, and was more a WriterOnBoard moment (on a very polarizing issue) than anything. Even though it eventually got the reset button treatment in "[[Recap/SouthParkS12E5EekAPenis Eek, A Penis!]]", many fans feel the whole "Mrs. Garrison" arc was pointless and shock value only for the sake of such.
** Many fans absolutely hate "[[Recap/SouthParkS10E14StanleysCup Stanley's Cup]]" due to its AssPull DownerEnding where [[spoiler:Stan's team of hockey players get beaten to a pulp by the Detroit Red Wings]].
** A lot of fans prefer to ignore "[[Recap/SouthParkS14E5TwoHundred 200]]" and "[[Recap/SouthParkS14E6TwoHundredOne 201]]", due to being OvershadowedByControversy from the censorship issue, and the questionable InternalRetcon of Cartman's father (which has no overall effect on the story, is casually dismissed, and is never brought up again). Even the show itself seems to be acting like these episodes never happened.
** "[[Recap/SouthParkS17E6GingerCow Ginger Cow]]" is disregarded by fans due to the harshest Kyle-bashing ever and Cartman getting away scot-free.
** Many fans despised "[[Recap/SouthParkS13E4EatPrayQueef Eat, Pray, Queef]]" for its one-note fart joke Terrence and Phillip B-plot, and the utterly stupid and surprisingly dramatic male guilt A-plot.
** Many fans like to forget that Kenny was ever KilledOffForReal and Butters/Tweak became his replacements. A decision so unpopular that Creator/TreyParkerAndMattStone retconned it after one season and never spoke of it again.
* For quite a few fans, the ''WesternAnimation/TomAndJerry'' episodes directed by Gene Deitch never happened. Simply put: If it didn't come from Hollywood USA, it's not a ''WesternAnimation/TomAndJerry'' cartoon. The Creator/ChuckJones-produced ''Tom and Jerry'' cartoons from the mid-late-60's zig-zag this a bit; they're nowhere near as beloved as the original Hanna-Barbera ''Tom and Jerry'' shorts, but they're not despised like the Gene Deitch incarnation. Creator/ChuckJones himself said he didn't care much for them. Further incarnations also elicit this in different forms.
* Fans of ''WesternAnimation/DextersLaboratory'' usually ignore the 3rd and 4th seasons due to the original creative staff leaving and the show becoming ''remarkably'' different as a result. (the only change most accepted is the hilarious RetCon that Mandark's real name is now [[EmbarrassingFirstName Susan]]) It helps that the second season finale was intended to wrap up the series. There are some willing to accept the TV movie ''WesternAnimation/EgoTrip'' as canon, given the original creator's involvement in making it.
* ''WesternAnimation/ThePowerpuffGirls''
** Many fans of the series disown everything after "Power-Noia", when Chris Savino took over as producer (creator Creator/CraigMcCracken left to start up ''WesternAnimation/FostersHomeForImaginaryFriends''). The nadir was the episode, "West In Pieces", which won a special juried Emmy. The series took a jarring shift in tone, turning from a lighthearted action show into a crude gag comedy where the main characters just so happened to have superpowers.
** Even before that, most fans of the series wish that the episode, ''Town and Out'' never happened, owing to the absolutely sadistic treatment of the Powerpuff Girls after being forced to move to a city full of horrible people.
** The Teenager flash back in "The City of Clipsville"? NEVER HAPPENED. Almost all teenage versions of the characters ignore it. Though, even in episode, it is only of dubious accuracy and is a parody if anything.
** We wish you luck in finding anyone who likes "Moral Decay" because of how uncharacteristically cruel Buttercup acts. Not that the other two Girls were much better, since they let their sister get brutally pummeled by villains for what she did. The Professor also seemed to be totally fine with Blossom and Bubbles selling out Buttercup like that. Plenty of fans were either irked by Buttercup's behavior, or were angry at how she was punished at the end. Some viewers even hate the episode for both of those reasons.
** Unsurprisingly, the [[ThePowerpuffGirls2016 2016 reboot]], known for a full ArtShift, error-prone animation, almost zero involvement from its original cast and crew (including recast voices for the three girls), and [[TotallyRadical many, many]] [[WereStillRelevantDammit fumbling attempts to be current]], has not gained much of a foothold with hardcore fans of the original, although it has its fans among the younger generation.
** Bliss, the fourth sister who was introduced in the 2016 series, is neglected by some fans who insist that the only character who was worth that role was [[Recap/ThePowerpuffGirlss2E11TwistedSisterCoverUp Bunny]].
* ''Franchise/DCAnimatedUniverse'':
** ''[[WesternAnimation/JusticeLeague Justice League Unlimited]]'':
*** The two-parter story "The Once and Future Thing" attracted a lot of flak from both Batman/Wonder Woman shippers, haters of ''WesternAnimation/BatmanBeyond'' and even Batman fans when it proved that the series ''WesternAnimation/BatmanBeyond'' was the canonical future of Franchise/TheDCAU, with Bruce going on to end up a lonely, bitter old man.
*** The episode "Epilogue" also took flak from many fans of ''WesternAnimation/BatmanBeyond'' when it revealed that [[spoiler:Terry [=McGinnis=] was actually the biological son of Bruce Wayne, courtesy of [[WellIntentionedExtremist well-meant meddling]] from Amanda Waller]]. Many fans rejected this because they disapproved of the idea that [[spoiler:Terry [=McGinnis=] was "genetically destined" to be the next Batman, instead of being an ordinary person who chose to be extraordinary, like Bruce himself]]. Shipping wars were another major reason for the BrokenBase, as "Epilogue" establishes that Terry's relationship with Dana (unpopular with many fans) is stable and long-term, implying they will marry, in stark contrast to fanon that had them breaking up shortly after the series ended.
*** Most fans won't acknowledge that Supergirl stayed a thousand years in the future because she fell in love with a cyborg that she only said about 3 sentences to.
** Quite a few fans of the DCAU like to think of ''WesternAnimation/BatmanBeyond'' (specifically, ''[[WesternAnimation/BatmanBeyondReturnOfTheJoker Return of the Joker]]'') and its SpinOff ''WesternAnimation/TheZetaProject'' as an alternate future rather than the canon one, as they don't want to live with the knowledge that Tim Drake will be [[spoiler:so [[BreakTheCutie brutally tortured]] and {{Mind Rape}}d]] that it takes [[spoiler:him the next couple of years to fully recover]], essentially making the entire history of the DCAU Bat-family [[spoiler:a case of ShootTheShaggyDog]]. Considering [[TraumaCongaLine what DC is doing to Tim in the comics]]? It almost makes anything SelfDemonstrating/TheJoker does to him look ''tame''. There are also people who just don't want to think of Bruce Wayne as a withered-looking old man or anyone else running around in the Batsuit.
** The offscreen relationship between Bruce and Barbara that occurred between ''WesternAnimation/BatmanTheAnimatedSeries'' and ''WesternAnimation/BatmanBeyond'' is well-hated by fans, due to the UnequalPairing aspect and the implications of a [[{{Squick}} love triangle between a father and adopted son]]. Said fans were further enraged when ''ComicBook/BatmanBeyond 2.0'' #28 and 29 spelled out how it went down. And now this unfortunate pairing has taken [[WesternAnimation/TheKillingJoke an animated film]] that the fandom has been eagerly awaiting and has instantly turned it into something despied.
** Some fans of the DCAU do not consider ''WesternAnimation/StaticShock'', ''WebAnimation/GothamGirls'', and ''WesternAnimation/TheZetaProject'' as canon, mainly because of their more "childish" nature, and not being created by Creator/BruceTimm and Creator/PaulDini. Same with the WebAnimation/{{Lobo}} web show, except it is not childish. However, in addition to several DCAU crossover episodes, including a ''WesternAnimation/BatmanBeyond'' crossover, Future!Static also appears in an episode of ''WesternAnimation/JusticeLeagueUnlimited''. Because of Static being mentioned meeting with Franchise/GreenLantern in a JLU episode, which ''did'' happen in SS, some fans use BroadStrokes.
* ''WesternAnimation/FamilyGuy'' has this in '''spades''':
** Due to a perception amongst the fanbase of declining quality since [[UnCancelled the show's resurrection in 2005]], plenty of former fans prefer to believe the show ended with the third season – specifically either "[[Recap/FamilyGuyS3E21FamilyGuyViewerMailOne Family Guy Viewer Mail #1]]" (final episode aired during the original run), "[[Recap/FamilyGuyS3E20RoadToEurope Road to Europe]]" (final episode produced) or "[[Recap/FamilyGuyS3E22WhenYouwishUponAWeinstein When You Wish Upon a Weinstein]]" (the BannedEpisode; final pre-cancellation episode to be released). Basically, everything made after David Zuckerman left is ignored. However, exceptions are often made for "[[Recap/FamilyGuyS8E1RoadToTheMultiverse Road to the Mulitverse]]" (the Season 8 premiere) and sometimes for "[[WesternAnimation/FamilyGuyPresentsLaughItUpFuzzball Blue Harvest]]" (the first ''Film/StarWars'' parody).
** Some fans will acknowledge the fifth season simply for the introduction of Brian's then-current girlfriend [[DumbBlonde Jillian]], but completely disregard everything after their breakup in "[[Recap/FamilyGuyS6E2MovinOutBriansSong Movin' Out (Brian's Song)]]".
** A lot of season 7 episodes – aside from "[[Recap/FamilyGuyS7E3RoadToGermany Road to Germany]]"[[note]] (the episode where Brian and Stewie use the time machine to go back to 1939 and save Mort Goldman from the Nazis)[[/note]] and "[[Recap/FamilyGuyS7E7OceansThreeAndAHalf Ocean's Three and a Half]]"[[note]] (the episode where Bonnie gives birth to Susie after being pregnant with her for over 6 seasons and Joe tries to pay for her medical expenses by stealing)[[/note]] – are ones that 1999-2002 era fans don't want to remember, whereas others consider it part of the show's prime.
** Fans tend to ignore the Season 10 episode "[[Recap/FamilyGuyS10E3ScreamsOFSilenceTheStoryOfBrendaQ Screams of Silence: The Story of Brenda Q.]]" Now, ''Family Guy'' has done dramatic episodes before, like "[[Recap/FamilyGuyS8E17BrianAndStewie Brian & Stewie]]", "[[Recap/FamilyGuyS8E8DogGone Dog Gone]]", some parts of "[[Recap/FamilyGuy8E7JeromeIsTheNewBlack Jerome is the Brand New Black]]", and the pre-cancellation episode "Brian Wallows and Peter's Swallows". But an episode playing domestic violence for drama coming from a show that isn't afraid to show women being beaten up, sexually harassed and assaulted, and mocked for their appearance and age, feels cheap and hypocritical.
** The Season 12 episode "[[Recap/FamilyGuyS12E6LifeOfBrian Life of Brian]]" – in which Brian is very graphically run over by a car, is briefly dead for the next two episodes, and is replaced by new dog Vinnie – ripped the show's already-tattered fanbase ''to shreds''. Alternatively, some fans, primarily those who view Brian as TheScrappy, feel that Brian stayed dead after "Life of Brian" and Vinnie stayed with the Griffin family for good.
** A lot of fans want to pretend that the whole Quagmire/Brian rivalry never happened. Considering the show's near-total abandonment of it, it appears most of the writers want to as well.
* ''WesternAnimation/TheSimpsons'':
** Special mention should go to "[[Recap/TheSimpsonsS9E2ThePrincipalAndThePauper The Principal and the Pauper]]", the episode where it's revealed that the Principal Skinner we've known throughout the show's long-running history (8 seasons at that point) is actually [[DeadPersonImpersonation a fraud named Armin Tamzarian]]. The episode is an [[CanonDiscontinuity in-show example of discontinuity]], too, because the characters in-show [[StatusQuoIsGod decide they prefer the fake Skinner, run the real one out of town, and a judge orders that they never speak of the incident again]]. Several subsequent episodes have made self-effacing TakeThat jokes about the preposterousness of the plot as well.
** The only episode more reviled for its blatant abuse of canon than "The Principal and the Pauper" is "[[Recap/TheSimpsonsS19E11That90sShow That '90s Show]]" which depicts the lives of The Simpsons throughout the 90s, completely ignoring that the events of episodes which aired during the show's earlier seasons that took place in the 90s, and completely rewriting canon as a result. This may have been upgraded to CanonDiscontinuity in later seasons, since they continue to depict Homer and Marge as having gotten together in the late 1970s into the 1980s.
** Also "[[Recap/TheSimpsonsS10E10VivaNedFlanders Viva Ned Flanders]]", with its portrayal as Ned as 60 has since been ignored - with Ned's previous background as the son of beatniks being retained.
** "[[Recap/TheSimpsonsS18E18TheBoysOfBummer The Boys of Bummer]]" and "[[Recap/TheSimpsonsS17E16MillionDollarAbie Million Dollar Abie]]" are disowned for showing abuse to Bart and Grampa respectively that goes beyond BlackComedy.
** "[[Recap/TheSimpsonsS11E13SaddlesoreGalactica Saddlesore Galactica]]" is divided, as some people (and the writers) see the episode more as a surreal [[TakeThatMe piss-take against the show's own decline in quality due to repetitive storylines and exaggerated characterizations]].
** "[[Recap/TheSimpsonsS15E21BartMangledBanner Bart-Mangled Banner]]" for being so heavy-handed against Republicans and conservatives that Creator/SethMacFarlane could rewrite it as a ''WesternAnimation/FamilyGuy'' episode by just changing the names and no one would be able to tell the difference.
** Crossing with FranchiseOriginalSin on this example, "[[Recap/TheSimpsonsS7E5LisaTheVegetarian Lisa the Vegetarian]]" sometimes gets this treatment, not for being bad (it's considered genuinely funny), but for starting Lisa's eventual {{Flanderization}} into a SoapboxSadie (the reason being due to Music/PaulMcCartney only agreeing to do the episode if Lisa stayed vegetarian for the rest of the show's run).
** Fans usually ignore the presence of Sideshow Bob's Italian wife and son as seen in "[[Recap/TheSimpsonsS17E8TheItalianBob The Italian Bob]]". Possibly CanonDiscontinuity as they're never seen or mentioned again after "[[Recap/TheSimpsonsS19E8FuneralForAFiend Funeral for a Fiend]]".
** Mike Scully's tenure as showrunner is hated by some due to the show's blatant use of ''Family Guy''-cum-''South Park''-esque levels of VulgarHumor. The shining example being the infamous Panda Rape scene in "[[Recap/TheSimpsonsS12E5HomerVsDignity Homer vs. Dignity]]", which crosses the line into tastelessness territory with a dash of sickening abandon.
** The Al Jean episodes are hated just as much, only for different reasons – namely, being boring, derivative, full of forced humor, carrying an air of WereStillRelevantDammit due to dated pop culture references, and the constant dueling with ''WesternAnimation/FamilyGuy'' in FOX's lineup.
** Some fans treat "[[Recap/TheSimpsonsS7E8MotherSimpson Mother Simpson]]" as the only time Mona Simpson appears, as they feel her later appearances cancel out its ''very powerful'' TearJerker ending.
** One of the biggest complains of "[[Recap/TheSimpsonsS23E22LisaGoesGaga Lisa Goes Gaga]]" was how much screentime Music/LadyGaga got as opposed to other celebrity guest stars (only Creator/MelGibson in "[[Recap/TheSimpsonsS11E1BeyondBlunderdome Beyond Blumderdome]]" had a comparable amount of screentime to her), to the point where the episode's absurdity resembles a CrackFic.
** Ned Flanders getting married to Edna Krabappel is seen by some fans as another JumpedTheShark moment in the series history.
** "[[Recap/TheSimpsonsS19E6LIttleOrphanMillie Little Orphan Millie]]", due to Milhouse's parents getting back together when their divorce was considered by many to be CharacterDevelopment for their son.
** Some fans don't consider any of the permanent character deaths to be canon. This includes the death of Maude in "[[Recap/TheSimpsonsS11E14AloneAgainNaturaDiddily Alone Again, Natura-Diddily]]", Snowball II in "[[Recap/TheSimpsonsS15E9IAnnoyedGruntBot I, (Annoyed Grunt)-Bot]]", Fat Tony in "[[Recap/TheSimpsonsS22E9DonnieFatso Donnie Fatso]]", and Edna Krabappel in "[[Recap/TheSimpsonsS25E13TheManWhoGrewTooMuch The Man Who Grew Too Much]]" (after [[TheCharacterDiedWithHim Marcia Wallace's own death]]). With some of these deaths, the narrative pretends they never happened either.
** Comic Book Guy getting married to a Japanese woman after he acted like a disgusting MightyWhitey was highly disliked due to it portraying Asian fetishism in a positive light.
** Bart, Lisa and Maggie were always considered special for being the three Simpsons kids but "[[Recap/TheSimpsonsS24E3AdventuresInBabyGetting Adventures in Baby-Getting]]" reveals that Homer donated his sperm and now has a massive number of offspring mothered by other women in the world. In the same episode Homer says he never wanted to be a father which contradicts how much he enjoyed being a father in classic seasons. It is also downright nonsensical that he would donate his genetic material to a sperm bank but not ever want children.
** Among other things the episode "[[Recap/TheSimpsonsS24E14GorgeousGrampa Gorgeous Grampa]]" included, like an offensive caricature of transgender people, Marge hoping Grampa is gay so she can look more progressive, and a ''Series/StorageWars'' parody, the episode also included a major SeriesContinuityError by presenting Mr. Burns as a fan of Abraham, when it was established in "[[Recap/TheSimpsonsS7E22 Raging Abe Simpson and His Grumbling Grandson in "The Curse of the Flying Hellfish"]]" that the two were mortal enemies since WWII.
* Loyal ''WesternAnimation/JimmyNeutron'' fans have despised ''WesternAnimation/PlanetSheen'' and wish it never happened while wondering why Jimmy Neutron wasn't just given a new season. Poor animation, lack of originality and rampant bad acting are commonly cited reasons by fans to stay away from the spin off. The fallout was so great that the ratings took a drastic landslide following its premiere, resulting in the series being ''[[FireflyEffect aired out]] [[ScrewedByTheNetwork of order]]'' and then moved from Nickelodeon to Nicktoons. Eventually Nickelodeon said "Screw it" and canceled the series without announcement, leaving the series to end on a sad note of [[AbortedArc Sheen never returning to Earth]].
* ''WesternAnimation/SpongeBobSquarePants''
** Anything after {{the movie}} and {{uncancell|ed}}ation is often reviled and ignored, due to the original producers and writers leaving the series (including creator Stephen Hillenburg), and the series ultimately becoming a FranchiseZombie, especially considering that the movie was originally intended to be the series finale. The series has gotten better after the sequel though after Hillenburg's return.
** Some fans will excuse Season 4, the first post-cancellation season, from discontinuity, saying that while it's not as good as seasons 1-3, it's not as bad as anything from season 5 onward. Others will include Season 4 as a whole in the discontinuity, but make an exception for [[Recap/SpongebobSquarepantsS4E6DuncesAndDragons "Dunces and Dragons"]],and sometimes [[Recap/SpongebobSquarepantsS4E69KrustyTowersMrsPuffYoureFired "Krusty Towers"]], which tend to be considered the best episodes of the season, and every bit as good as the pre-movie episodes. In fact, Krusty Towers was originally intended to be in Season 3, which is considered the best season.
** It's '''not''' a good idea to mention the words "A Pal for Gary", which depicts [=SpongeBob=] as so ignorant and stupid towards Gary (even by those who tolerated his increased stupidity in later episodes), it's like he's a whole new character entirely. Even fans of post-Movie [=SpongeBob=] hate this episode.
** Similarly, the fans think that Mr. Krabs is at his worst in "One Coarse Meal", in which he abuses Plankton's fear of whales to make him quit stealing the formula. Plankton is eventually sent into [[DrivenToSuicide suicidal depression.]] He gets away with it, too. Again, good luck finding anyone, even the post-Movie fans, who will defend this episode.
** To a lesser extent, "I'm With Stupid", "The Great Snail Race" and "Party Pooper Pants" are considered the worst episodes in the pre-Movie era. The first involves Patrick berating [=SpongeBob=] - who initially pretended to act this way to make Patrick seem smarter to his parents - and ultimately [[KarmaHoudini getting away with it]]. The second has [=SpongeBob=] training Gary to the point of exhaustion just so he could win a race. The third is disliked for having [=SpongeBob=] [[TookALevelInJerkass take a level in Jerkass]], and the Patchy segments are considered {{Filler}} to an episode that otherwise could have been a typical 11 minutes.
* ''WesternAnimation/TotalDrama'':
** A good chunk of fans believe that ''[[SophomoreSlump Action]]'' (and to a lesser extent ''World Tour'') never happened.
** ''All-Stars'' got this treatment, which was considered an utter disaster by many. Some even go as far as to say that it was all nothing more than a dream Chris had while in prison after being arrested in the finale of ''Revenge of the Island''.
** ''Pahkitew Island'' also gets this treatment as well and just like with ''All-Stars'', some pretend that it was all a dream.
** Funnily enough the only ''Total Drama'' property that seems to have averted this is ''WesternAnimation/TotalDramaPresentsTheRidonculousRace'' which, though technically a SpinOff, has been embraced be the fanbase as a return to form for the series.
*** That said, there are still fans who ignore it for feeling less like an actual spinoff and more like another (bad) season of the show.
* ''Franchise/StarTrek'':
** In a reversal of the standard discontinuity reaction, quite a few fans ''did'' consider the [[WesternAnimation/StarTrekTheAnimatedSeries animated series]] {{canon}} when it [[CanonDiscontinuity officially wasn't]] (except for certain details verified later in-canon). It was declared canon after a poll on the official ''Franchise/StarTrek'' website in the late noughties, leading to the trope being played straight with fans declaring Discontinuity on that series as well.
** "[[Recap/StarTrekTheAnimatedSeriesS1E2Yesteryear Yesteryear]]" was an almost universal exception, beloved for portrayal of Spock's childhood on Vulcan. The backstory the episode established for Spock is considered to be a completely canonical history, and elements of the episode made it into the 2009 franchise [[Film/StarTrek reboot]]. Some aspects of Spock's childhood that were portrayed in Yesteryear were established in the TOS episode, "[[{{Recap/StarTrekS2E10JourneyToBabel}} Journey to Babel]]".
* ''WesternAnimation/DannyPhantom'':
** Most fans refuse to acknowledge the third ([[ScrewedbytheNetwork and final]]) season of the show, [[SeasonalRot due to head writer Steve Marmel leaving the series]], the new writers [[StatusQuoisGod ignoring past character development]], and the way in which [[FanDislikedExplanation plot threads are left hanging]] (despite the creator knowing it would be the last season). Even those who acknowledge the last season often ignore the finale episode ''Phantom Planet'', due to its [[spoiler:revealing Danny's secret to Valerie and his parents, and possibly the world]]. They prefer to play around with the plot ideas that were nullified by this episode.
** Butch Hartman has gone on record that the ghosts are, in fact, not actual ghosts but rather monsters from another dimension. They were born ghosts. Almost all fans ignore this, especially since it contradicts the series itself.
** Ember's canon backstory is sad but there are fans that listen to "Remember" and can't see it being that way. Many fans prefer to imagine Ember committed suicide after having a one-night stand with a boy who ignored her afterwards.
* ''WesternAnimation/AvatarTheLastAirbender'':
** The episodes "[[{{Recap/AvatarTheLastAirbenderTheGreatDivide}} The Great Divide]]" and "[[{{Recap/AvatarTheLastAirbenderAvatarDay}} Avatar Day]]" receive this. Although the latter gets a pass as it fills in history on one of the previous Avatars. The former was actually acknowledged in "[[{{Recap/AvatarTheLastAirbenderTheEmberIslandPlayers}} The Ember Island Players]]" where the actors recreating the Avatar's travels just briefly mention the Great Divide before deciding to just fly over it.
** The entire third season is sometimes treated as non-canon because it is full of filler and the pacing is all over the place. Many plots that Bryke said they would explore such as Kuzon's backstory, Zuko finding Ursa (which did happen in the graphic novel trilogy ''[[ComicBook/AvatarTheLastAirbenderTheSearch The Search]]'', though the storyline was fairly divisive in addition to the FanDislikedExplanation), and Combustion Man's identity were never touched upon at all. The ending is also highly controversial within the fandom.
** The canon consensus seems to be that Ty Lee faked her friendship with Azula because she was afraid of disobeying her. Good luck finding fans who believe that. ''The Search'' showing that Ty Lee is still afraid of Azula post-series was completely ignored by most fans, who prefer to have Ty Lee as Azula's MoralityPet and have Ty Lee try to redeem and rehabilitate her.
** ''The Search'' comics revealed that [[spoiler:Ursa married another man after running off and had a daughter with him, meaning Zuko and Azula have a half-sister]]. Kiyi has a tendency to be quietly ignored by fans.
** Several fans tend to consider the Dark Horse comics taking place after the show as non-canon, with ''The Promise'', ''The Search'' and ''Smoke and Shadow'' being the ones that get ignored the most, ironically ''The Rift'' and ''North and South'' don't get the same backlash as those three. Mai and Zuko shippers despise ''The Promise'' and ''Smoke and Shadow'' due to the ShipSinking in the former and Mai being an UnintentionallyUnsympathetic {{Jerkass}} in the latter, while Azula fans despise ''The Search'' and ''Smoke and Shadow'', feeling that it damages the possibility for her to have a redemption arc and that [[spoiler:her half-sister Kiyi]] is [[ReplacementScrappy a poor man's replacement for her]].
** The SequelSeries, ''WesternAnimation/TheLegendOfKorra'', has a very mixed reception. Some see it as a faithful follow-up to the original series, while others do not. Fans take issue with either certain elements (the {{Steampunk}}/GangsterLand setting rather than MedievalStasis being most prevalent), the somewhat rapid establishment and changing of the LoveTriangle between first Mako/Korra/Bolin then Korra/Mako/Asami, and the characters being less compelling overall. There are some groups that deny the entire series exists, because they think it contradicts the established canon of ATLA, their ships from the original series were officially sunk, and they think it is written poorly when compared to the original series.
*** There are more than a few fans who disregard the reveal of Amon's true identity, and his [[spoiler: true motivations]], preferring the character as he was before said reveal.
*** Other fans dislike Aang's supposed neglect of Kya and Bumi to teach Tenzin more about the Air Nomads, feeling that it clashed with his established personality too much.
* ''WesternAnimation/KimPossible'':
** Fanfic writers ignore the hook up between Bonnie and Senor Senor Junior. This may have to do with the fact in the episode where said hook-up happens, Bonnie rigged an election to become homecoming queen (instead of Kim) and we also learn Brick Flagg (her ex-boyfriend) broke up with her. So Bonnie gets Junior as a replacement boyfriend, and gets [[KarmaHoudini no punishment]] for rigging the election. That or it's so they can ship her off with someone else.
** Aside from people who actually ship them, [[spoiler:Drakken]] and [[spoiler:Shego]] hooking up in the finale is generally ignored.
** Some Kim/Shego or Ron/Yori shippers would disregard Ron and Kim as an OfficialCouple.
* ''Franchise/{{Transformers}}'': Some fans ignore everything after ''WesternAnimation/TransformersTheMovie'' (the animated one) or Season 2. ''WesternAnimation/BeastWars'' fans often ignore ''WesternAnimation/BeastMachines'' and/or the ''Beast Wars''-specific comic stories, and others ignore ''Beast Wars'' itself. And fans sometimes reject that the comics {{retcon}}ned the origins of Unicron and Primus in ''every'' continuity. Many fans also deny ''The Rebirth'' as canon, mainly because of its poor writing, animation, and characters. Ignoring this is made easier by the fact that the anime series ''Anime/TransformersHeadmasters'' takes place after Season Three, but ignores ''The Rebirth''. Wiki/TFWikiDotNet has a good article on "[[http://tfwiki.net/wiki/Personal_canon Personal Canon]]".
%%Note: Transformers Animated cannot be listed here as it takes place in its own continuity. Same goes for Transformers: Prime. If you're going to list Kiss Players, that belongs in Anime, and if you're going to list the Michael Bay films, they take place in their own continuity and so cannot be listed anywhere in this index.
* ''WesternAnimation/TeenTitans'':
** The 5th season gets this for introducing a slew of new characters, spending episodes focusing on them, concluding with a DownerEnding finale, and the fact the series was focused on Beast Boy when he had already had a season long arc in season 2. This is also inverted concerning ''Teen Titans''. There are fans who work it into the ''DC Animated Universe'' itself, not caring for any {{Continuity Snarl}}s.
** WordOfGod is Beast Boy and Raven are LikeBrotherAndSister. Finding any fanworks that actually believe this - unless the creator ships them both with someone else - is an extremely difficult task. At minimum people see one or the other having a crush on the other. A similar thing happened with Cyborg and Bumblebee, who ''aren't'' supposed to seem romantic but end up seeming that way.
* ''Franchise/ScoobyDoo'':
** Some fans like to pretend [[TheScrappy Scrappy Doo]] does not exist. Creator/CartoonNetwork tends to acknowledge this in specials like The Scooby Doo Project and during an episode of ''Mystery Inc.'' when Daphne sees a bust of Scrappy, tries to say something, and is reminded by Fred that they promised never to speak of him again.
** Many fans of ''Zombie Island'' ignore ''Cyber Chase'', ''Alien Invaders'', and ''The Witch's Ghost'' ([[EnsembleDarkhorse Hex Girls]] aside) as they're LighterAndSofter. Even some people who like them put them in a different continuity from ''Zombie Island'' (though ''The Witch's Ghost'' does contain a brief ContinuityNod to ''Zombie Island'').
** Some others have different jumping off points. For some people, it's ''A Pup Named Scooby Doo'', ''Scooby Doo and the Cyber Chase'' or everything, but ignoring the following three:
*** ''WesternAnimation/ShaggyAndScoobyDooGetAClue'', which involves the titular characters behaving as though they were secret agents gets this as well on the grounds that the two characters do not behave as they did in prior ''Scooby-Doo'' incarnations. It probably does not help either that Daphne, Fred, and Velma are merely guest characters as opposed to main ones in that show
** With a LongRunner like ''Scooby-Doo'', there is of course the Purist contingent who only acknowledge the classic episodes from 1969 into the late 1970s (up until Scrappy-Doo's introduction).
* ''WesternAnimation/{{Rugrats}}'':
** There are fans who think the show fell off when Tommy's brother Dil and/or Chuckie's stepsister Kimi were introduced. They have a tendency to ignore the characters.
** Many fans won't even acknowledge the ''WesternAnimation/AllGrownUp'' as a spin-off sequel of the original show. Same with "Rugrats Pre-School Daze", which was such a flop that only ''four'' episodes were produced.
* Some fans pretend that season 4 of ''WesternAnimation/ReBoot'' never happened due the characters suffering from {{Flanderization}}, Hexadecimal's [[spoiler:HeroicSacrifice]], and the ResetButton being pressed with [[spoiler: Bob reverting back to his season 1-2 design and Megabyte coming back after having a perfect send-off in season 3]]. And some do count the first half of season 4, but ignore everything [[spoiler:after Megabyte-Bob appears.]]
* There are fanfic writers of ''WesternAnimation/PhineasAndFerb'' who pretend that the ending of ''[[WesternAnimation/PhineasAndFerbTheMovieAcrossThe2ndDimension Across the 2nd Dimension]]'' [[spoiler:where everyone has their mind wiped]] does not happen.
** There are also those that deny ''Act Your Age'' ever happened.
* The 1980s revival of ''WesternAnimation/TheJetsons'' is not acknowledged by the some of the series' fans. For some reason Boomerang stopped airing them in the mid 2000s despite having been well on air all throughout the 90s.
* ''WesternAnimation/CodenameKidsNextDoor'':
** The revelation that Heinrich is [[spoiler:a girl]] is considered untrue by a number of fans, mainly due [[ShockingSwerve to the utter lack of build-up to this twist]] just for the sake of wrapping up Heinrich's plotline before the series ended.
** Also considered non-canon is Chad's [[spoiler:being a double agent all along during his time with the Teen Ninjas]] [[ShockingSwerve for reasons similar to Heinrich's twist]], to the very final episode where [[spoiler:Numbuh 1 ends up having to leave Earth to help the Galactic KND]].
** Some 1x5 (or 5 x anyone else) shippers want to ignore the fact that [[spoiler:Numbuhs 2 and 5 get married in the future]], despite the fact that it had a little bit of foreshadowing.
** Most fanfiction writers(especially shippers) prefer to pretend that [[spoiler:Numbuh 1 never left earth to join the Galactic Kids Next Door]] in Operation INTERVIEWS.
* At least a few ''WesternAnimation/InspectorGadget'' fans pretend there was never an additional season that [[TheOtherDarrin changed the voice cast]] and introduced [[TheScrappy Corporal Capeman]].
* ''WesternAnimation/{{Futurama}}'':
** Several fans do not count any of the episodes after "[[Recap/FuturamaS4E18TheDevilsHandsAreIdlePlaythings The Devil's Hands Are Idle Playthings]]" as canon and refuse to acknowledge the made-for-DVD movies and the Creator/ComedyCentral episodes as canon. Then are a few who are more willing to accept the films but feel ''Into the Wild Green Yonder'' was the end of the series and none of the episodes after that are canon.
** Some fans refuse to acknowledge that Calculon and Roberto were KilledOffForReal (even though there was an episode where Calculon is brought back to life, only to realize that no one wants him back and he ends up dying again after giving the best acting performance of his life, and Roberto randomly appeared in a minor role in the penultimate episode).
* ''WesternAnimation/{{Daria}}'':
** Most fans hate the episode "Depth Takes a Holiday" so much to the point that fanfics have been written just to explain how it never happened and isn't canon. Granted, despite no AllJustADream disclaimer at any point, the episode was probably never intended to be taken too seriously or intended to be canon.
** The same with "Daria!", the MusicalEpisode. In both cases it largely has to do with the BizarroEpisode themes interfering with the show's general realism.
** It's also best not to talk to any ''Daria'' fans about the episodes where Daria dates Tom after Tom breaks up with Jane. Or the episode where Daria has to choose between contacts and glasses ("Through a Lens Darkly"), due to how out-of-character it makes her.
* Some longtime ''WesternAnimation/XiaolinShowdown'' fans refuse to consider the sequel series ''WesternAnimation/XiaolinChronicles'' as canon due to network change, more [[DenserAndWackier comedic tones]], changes to the names of many of the Shen Gon Wu magic items, {{retcon}}s, extreme {{flanderization}} of the cast, inclusion of the new character [[TheScrappy Ping-Pong]], lack of the original voice cast and production moving to Canada.
* A very common situation for EasternEuropeanAnimation. A lot of the Soviet shorts series like ''Animation/NuPogodi'' were continued after USSR collapsed. In half the cases, these sequels are universally hated. In the other half, they are just as universally unknown.
* Most fans of both ''{{WesternAnimation/Futurama}}'' and ''WesternAnimation/TheSimpsons'' ignore the CrossOver special "Simpsorama" for various reasons, like implying the Futurama universe is a CrapsackWorld BadFuture.
* Some fans of the Nickelodeon ''[[WesternAnimation/TeenageMutantNinjaTurtles2012 Teenage Mutant Ninja Turtles]]'' cartoon explicitly refuse to watch anything after the show's first season, where Joshua Sternin and Jennifer Ventimilia, two of the show's original three co-creators as well as head writers, left and took the rest of the regular writers from the first season with them. Even several fans who are more forgiving of the second season and up intentionally ignore many of the more controversial changes in the later episodes and do not accept them as canon, such as [[spoiler: April being revealed to be a half-Kraang alien the entire time]], [[spoiler: Irma being a Kraang in disguise]] or [[spoiler: Karai becoming a snake mutant.]]
* ''WesternAnimation/HeyArnold'':
** Fans utterly ''despise'' the episode "Arnold Betrays Iggy", where Arnold is unfairly punished and tormented for humiliating his friend Iggy when in reality it was the fault of their friends Sid and Stinky, who get zero comeuppance for any of their actions. The show's staff and its creator Craig Bartlett sympathized with the fans and apologized for the episode, so much so that the episode is almost never rerun anymore, and Iggy himself largely removed from the series. Fans would also prefer to pretend that the fourth graders never had Gerald Field stolen from them in ''New Bully on the Block.'' Fans of Helga Pataki would love to forget "Helga and the Nanny" (which, ironically, is paired with "Arnold Betrays Iggy") since Helga crosses the MoralEventHorizon by framing her nanny for theft just because she didn't like her.
** ''WesternAnimation/HeyArnoldTheJungleMovie'' opted for ComicBookTime instead of being FrozenInTime. This, however, causes an issue with the aesthetic and previous episodes. Everything still looks late '90s to early 2000s and the final episode was in 2004, however everyone has smartphones now despite only a few months passing. In order to fix this, many fans just pretend it took place in the 1990s.
* Insofar as the ''WesternAnimation/LooneyTunes'' can be considered "[[NegativeContinuity canonical]]", many fans like to pretend that the cartoons made from late 1964 until 1969 don't exist. These cartoons started with the double whammy of Daffy and Speedy being paired together (with Daffy being made into an unlikeable jerk) and a series of dull Roadrunner shorts. And then [=WB=] introduced some random new characters like Cool Cat and Merlin The Magic Mouse plus several one-shots, none of which had any staying power whatsoever.
* Fans of ''WesternAnimation/TheRealGhostbusters'' tend to treat the ''Slimer and The Real Ghostbusters'' seasons as a to-be-ignored spin-off, rather than a continuation of the series.
** Some fans will only watch the first two seasons and refuse to watch any others, due to Lorenzo Music being replaced as Peter Venkman by Dave Coulier after Season Two.
* ''WesternAnimation/YoungJustice'': Due to the TimeSkip, change in cast, character deaths, and multiple dropped plot threads, some fans like to pretend the entire second season never happened. Even the fans who like the second season tend to prefer the idea that [[spoiler:Wally didn't actually die in "Endgame", although the actual means by which he survived varies depending on who you talk to.]]
* ''WesternAnimation/{{Jem}}'':
** "The Day The Music Died" is generally ignored for its continuity errors and generally being a BizarroEpisode.
** The fact The Misfis abandon Clash gets conveniently ignored in many fanworks. Fanfics have her hanging around them, sometimes with them having let her back in once she begged them, even after the series ended.
** Fanworks often mention the characters dyeing their hair. In canon [[YouGottaHaveBlueHair it's natural]].
** Clash having purple hair tends to get ignored because she looked better with her original hair, even if it [[OffModel wasn't doll accurate]]. Even the [[ComicBook/JemAndTheHolograms comic reboot]] ignored the purple hair in exchange for her original red-and-blue.
* Fans of the ''Mario'' cartoons are like this. Some fans of [[Series/TheSuperMarioBrosSuperShow Super Show]] disregard the sequel series (one being disliked for the [[WesternAnimation/TheAdventuresOfSuperMarioBros3 Koopa Kids and mostly taking place in the human world]], the other for the [[WesternAnimation/SuperMarioWorld cave man theme]]), others acknowledge the first two and ignore the third. Some acknowledge all three. Universally though, the re-cut ''Club Mario'' version of the ''Super Show'' is regarded as never existing.
* ''WesternAnimation/TheLionGuard'':
** ''The Lion Guard'', a sequel to ''Disney/TheLionKing'', has sparked some pretty heavy continuity issues. It acts as a midquel to the second movie, seeming like it's trying to cram as much into ''The Lion King II's'' time gap as it possibly can, while adding more magical elements not previously seen in the franchise. (Apparently lion cubs can acquire deadly roars from clouds in the sky now.) Disputes over the canonicity of this happen on a regular basis within the fandom. Early on, some fans even thought the show was going to write ''The Lion King II'' [[CanonDiscontinuity out of canon completely]], though given ''The Lion King II'' had its own issues with continuity, among other things, [[BrokenBase there are some that would have preferred that]]. However, there are some fans who consider the episode ''Paintings and Predictions'' canon, since it (more or less) shuts down the long-standing theory that Simba and Nala were actually cousins.
** "Painting and Predictions" in itself gets ignored because it [[{{Jossed}} killed many fan theories]]. Many fans dislike it for revealing that Nala's father isn't Scar, Mufasa, or a book-only/comic-only lion, but is in fact [[RememberTheNewGuy a random never-before-seen lion]].
* ''WesternAnimation/AmericanDad'':
** There's a handful fans who like to pretend Hayley and Jeff getting married never happened, as they feel it ruined her as a character.
** The multi-season storyline of Jeff being trapped in space is often ignored by fans due to how it was an ArcFatigue (this plot spanned out over roughly two years with only three episodes truly devoted to it) that was resolved via an AssPull ResetButton where all the characters would end up forgetting that it even happened (minus Roger [[KarmaHoudini who caused the whole thing to begin with]]).
** A number of fans ignore the post-cancellation seasons of the show on TBS. An extremely smaller amount goes as far as to ignore everything past the 3rd or 4th seasons.
* Though the finale of ''WesternAnimation/RegularShow'' was well-regarded, Mordecai/Margaret and Mordecai/CJ shippers disregard the confirmation of Mordecai/Stef as an OfficialCouple in the end as non-canon.
* Finn/Bubblegum and Finn/Marceline shippers would disregard Finn's romance with the Flame Princess in ''WesternAnimation/AdventureTime'' as non-canon.
* ''WesternAnimation/{{Kaeloo}}'': A lot of fans like to pretend that the episode "[[CourtroomEpisode Let's Play Courtroom Drama]]" never happened, due to [[spoiler: Kaeloo being a ManipulativeBitch and pulling off a WoundedGazelleGambit, and Mr. Cat getting beaten up the one time he shows Kaeloo that he actually does care about her.]]#
* Though the GrandFinale of ''WesternAnimation/SamuraiJack'' was well-regarded, some fans felt that it shouldn't have ended on a [[BittersweetEnding bittersweet note]] and that [[spoiler:Ashi should've survived in the climax after Jack finally kills Aku in the past]], feeling that the StatusQuoIsGod trope shouldn't have been restored after being deconstructed in the FinaleSeason and that [[spoiler:Ashi being [[RetGone erased from existence]]]] shouldn't have happened at all.
* Most ''WesternAnimation/KungFuPanda'' fans rarely give the TV show spinoff, ''WesternAnimation/KungFuPandaLegendsOfAwesomeness'' a second glance due to its severe decline in story quality (especially when compared to the movies), outright {{Flanderization}} of canon characters (and including a heap of [[TheScrappy scrappy characters]]), ship pandering, and numerous contradictions to established lore.
* As far as ''Franchise/MastersOfTheUniverse'' fans are concerned, there have been only two He-Man cartoons, the [[WesternAnimation/HeManAndTheMastersOfTheUniverse1983 one released]] in 1983 and the [[WesternAnimation/HeManAndTheMastersOfTheUniverse2002 one produced]] nineteen years later. That [[WesternAnimation/TheNewAdventuresOfHeMan one cartoon]] featuring Adam of Greyskull and where He-Man shouted [[ByThePowerOfGreyskull "By the Power of]] ''[[ByThePowerOfGreyskull Eternia"?]]'' It never happened.
* Fans of ''WesternAnimation/TheMagicSchoolBus'' tend to ignore the reboot/sequel series ''WesternAnimation/TheMagicSchoolBusRidesAgain'' for a variety of reasons, be it the paint-by-numbers cookie cutter animation and character designs that many find inferior to that of the original series, new teacher Fiona Frizzle lacking the heart and soul of her sister Valerie, sending Phoebe back to her old school and [[ReplacementScrappy replacing her]] with new student Jyoti, or the kids themselves lacking the personality and relatibility they had in the original series (with even Arnold often coming off as TheGenericGuy).
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