* The ''WesternAnimation/FamilyGuy'' episode "Turban Cowboy" was pulled from FOX and Hulu after the Boston Marathon bombings that happened three weeks later. The main plot was about Peter converting to Islam as part of a terrorist plot and there was a cutaway of Peter driving drunk through a marathon, which only made things worse (especially when someone created a YouTube video that proved that SethMacFarlane somehow predicted this would happen). [=MacFarlane=] has gone on record to say that, much like "Not All Dogs Go To Heaven," he [[OldShame regrets making this episode]]. Despite the backlash, the episode has made a comeback in syndication, mostly on TBS and Cartoon Network, and is on Netflix.
** Other missing ''FamilyGuy'' episodes:
*** "When You Wish Upon a Weinstein": Banned for potentially being offensive to Jews and Catholics, though [=MacFarlane=] and his crew actually brought in a rabbi to make sure the episode was "kosher," and, despite FOX's decision to pull the episode, it was released on the volume three DVD and when news hit that ''FamilyGuy'' was coming back with new episodes, this episode did air, but with some alterations[[note]]Peter's "Even though they killed my Lord" line in his song "I Need a Jew" was changed to "I don't think they killed my Lord" and Quagmire "looking for his keys" in front of Lois was shortened so it wouldn't look like masturbation[[/note]].
*** "Partial Terms of Endearment": Banned for references to abortion, even though the episode is actually very even-handed on the subject and doesn't do a lot of bashing on people who are for it. It was most likely cut because FOX feared that people would write in and complain. The episode also isn't shown on CartoonNetwork, TBS, or Netflix streaming, but has aired overseas on [=BBC3=] (with some parts cut for time and content) and is available uncut and uncensored as a standalone DVD release (see the BannedEpisode trope page for what it looks like).
*** The VerySpecialEpisode "Screams of Silence: The Story of Brenda Q." only aired once on FOX, probably due to its realistic depiction of DomesticAbuse, but it can be seen on cable syndication and on Netflix.
* Disney Channel no longer shows an episode of ''WesternAnimation/PhineasAndFerb'' called "Ready for the Bettys" because a real-life band named The Bettys thought the episode was about them. The similarity was in name only as the styles of the two all-girl bands was different. As most half-hours of the series contain two episodes, "The Flying Fishmonger" is also out of rotation because it was paired with the episode.
* Four episodes of ''WesternAnimation/TheMagicAdventuresOfMumfie'' are missing on Hulu for reasons unknown: "The Music of Spring", "Flying Fever", "Lighter Than Air", and "Aiming for the Moon".
* ''WesternAnimation/BatmanTheAnimatedSeries'' had a short pitch reel titled "The Dark Knight's First Knight" that was presented to FOX before production of the series formally began. It was never broadcast and left unseen for over twelve years until it was released on DVD as a bonus feature. Unfortunately, the original audio track was lost and dubbed over by the series' main theme.
* Due to the studio making more episodes than the network had ordered, four ''WesternAnimation/KingOfTheHill'' episodes past the GrandFinale ([[spoiler:the episode where Hank discover's Bobby's talent for identifying meat cuts and pointing out their flaws]]) were not in the network run and were only seen in syndication (including Creator/AdultSwim). The four episodes are:
** "The Honeymooners": [[spoiler:Hank's mom breaks up with her Jewish boyfriend -- from the ChristmasEpisode where Hank goes blind after seeing his mom and her first boyfriend have sex -- and plans to marry a man she just met and live in an RV]].
** "Bill Gathers Moss": [[spoiler: Bill takes in Principal Moss, who has been living in the school following his divorce, and an ex-Playboy centerfold as a roommate, after watching a sitcom about two roommates who get into wacky adventures. Unfortunately for Bill, Moss hooks up with the Playmate and they effectively strip Bill of any say of what is allowed and not allowed in the house and allow the Playmate's Russian counterfeiter boyfriend set up shop inside their home.]].
** "When Joseph Met Lori, and Made Out with Her in the Janitor's Closet": [[spoiler:Joseph starts dating a girl named Lori and the relationship quickly turns physical, and Dale, who refuses to talk to his son about sex, checks into a mental hospital for dementia. The episode's B-Story has Nancy and a coworker at her news station waging war with each other to find a human interest angle they can exploit for more airtime.]]
** "Just Another Manic Kahn-Day" [[spoiler:Hank convinces Kahn to stop picking up his medicine at the pharmacy -- only to learn when they hire Kahn to build a barbecue that Kahn is a manic-depressive and needs his medication to level him out, but Hank doesn't want Kahn to lose his manic energy to make the barbecue. Meanwhile Bobby tries to find the humor in a "Ray J. Johnson" comedy record that Peggy, Dale, Bill, and Boomhauer claim is funny.]]
* ''WesternAnimation/TheSimpsons'' actually did have a lost episode that was aired only once in September 1995 called "Springfield’s Most Wanted". It aired between a rerun of the season six finale "Who Shot Mr. Burns Part One" and the debut of the season seven premiere, "Who Shot Mr. Burns, Part Two". This episode was mainly a ClipShow with live action segments hosted by John Walsh, and had guest apperences by Los Angeles police chief Daryl Gates, Dennis Franz, Courtney Thorne-Smith, Kevin Nealon, Chris Elliott and Andrew Shue. Since this episode was connected to the "Who Shot Mr. Burns" contest, this episode only aired once on Fox (but it was shown more than once on Sky One in the UK). It can now be seen on the season six DVD set.
** In an attempt to prevent controversy from Japanese viewers, Fox never aired the episode "Thirty Minutes over Tokyo" in Japan or put it on the season 10 DVD set due to scenes that mock Japanese culture and society (The Simpsons having a seizure while watching a robot anime, Homer tossing the Japanese emperor into a sumo thongs Dumpster, and The Simpsons appearing on a sadistic Japanese game show).
*** Which is just as well, since there is a gag relying on [[TranslationYes Homer saying a full sentence in Japanese, which is subtitled as simply, "D'oh!"]]
** Season 13's "Blame It on Lisa" was banned in Brazil for the same reasons why Japan banned "Thirty Minutes Over Tokyo" (stereotypical depiction of the country).
* The ''WesternAnimation/BeavisAndButthead'' third-season opener "Comedians" featured Beavis trying to juggle flaming newspapers and burning down a comedy club. Because it aired only a month before the Ohio mobile home fire that Beavis and Butt-Head were blamed for, this episode was swiftly pulled out of rotation and later heavily censored.
** Other Beavis and Butt-Head episodes were banned or heavily censored for instances of Beavis saying "Fire! Fire!" or flicking a lighter ("Stewart's House", "Kidnapped"), animal cruelty ("Frog Baseball", "Washing the Dog"), inhalant and drug abuse ("Home Improvement", "Way Down Mexico Way") or anything that might be considered poor taste in the aftermath of Columbine and September 11th ("Heroes", "Incognito"). Many of these episodes have aired on Viacom-owned networks overseas unedited.
** There's also the music video segments. Who knows how many of them have been lost forever due to copyright issues? Fortunately, some of the rights have been secured, and over three dozen music videos have made it to the various Creator/MikeJudge collections.
* Dialogue was recorded for ''WesternAnimation/TheAngryBeavers'' series finale titled "Bye Bye Beavers", but it was never finished or aired, as per a rule stating that Nickelodeon series finales should not have [[EndOfSeriesAwareness self-referential humor about the series' end]]. (Supposedly, Nick considered breaking the rules for it, but ultimately left it unfinished due to the fact that the episode ended with the Beavers [[AscendToAHigherPlaneOfExistence going to Cartoon Heaven]], which was thought to be too sad for kids.) It was supposed to be paired with an episode called "A Tale of Two Rangers", of which no trace exists.
* [[WordOfGod Supposedly]] there are a number of Minerva Mink shorts from ''WesternAnimation/{{Animaniacs}}'' that never got released due to excessively risqué content, though given the content of the only two Minerva Mink shorts that ''did'' air, one has to wonder exactly why the network let those through.
** A lesser example of a missing ''segment'': Episode #55 has a wraparound that, for some reason, isn't on the DVD or on contemporary TV airings.
* ''WesternAnimation/EdEddNEddy'' has three of these. According to an interview with the show's creator, an episode titled "Special Ed" was produced but never completed, due to content he deemed "too real." Not much else is known about it other than the fact that it might have been [[ADayInTheLimelight an episode that focused on Ed]]. What became of two season five episodes, "Luck Be an Ed Tonight" and "A Room and an Ed", however, is unknown. The episodes may have been left unaired, or possibly never made. More information can be found [[http://ed.wikia.com/wiki/Season_5#Scrapped_Episodes here]].
** For a long time TheOtherWiki couldn't acknowledge the finale film ''Ed, Edd n Eddy's Big Picture Show'' as actually being real as no publicity had been put out for it until it finally aired in November 2009 on the American network.
* After ''WesternAnimation/TimeSquad'' was canceled soon after being renewed for its second season in early 2002, a few episodes were held back/misplaced from the Creator/CartoonNetwork line up for a while for unknown reasons, including "Whitehouse Weirdness", an episode that parodied a ''Scooby Doo'' mystery, complete with the very same music and sounds from the original 1969 series [[note]](some blame the stringent censorship after September 11th at the time which toned down a lot of mockery of the President and U.S. officials, though the real reason could have been legal issues with using ''ScoobyDoo'' as a parody or show creator Dave Wasson having a falling out with his production crew and Cartoon Network subsequently firing him)[[/note]]. The finale was presumably "Nobel Peace Surprise", in the summer of 2002, with five more episodes seemingly stuck in limbo until the spring of 2003. Four of the said episodes eventually aired within the course of two months, with one episode held back all the way into November of that year. Incidentally, two of the episodes that aired in spring of 2003 were "Day of the Larrys" and "Ex Marks the Spot," which put the show's already-high HoYay count over the top. The real finale "Orphan Substitute" (and the preceding cartoon, "Floral Patton") didn't air until November 2003, due to unfounded fear that viewers would complain about the show mocking then-U.S. President GeorgeWBush. These extra episodes were most likely aired due to Creator/CartoonNetwork wanting to get rid of the series as quickly as possible.
* Several episodes of ''DaveyAndGoliath'' were presumed destroyed by the [[http://www.elca.org Evangelical Lutheran Church in America]], the successor to the church that commissioned the series, due to material that today's mainline denominations would consider unfit for airing on a children's program (such as racial stereotypes and sexism). They were later found, re-edited and released on DVD.
* The original broadcast masters for episodes of ''WesternAnimation/ScoobyDooWhereAreYou'' are long lost. The only episode whose master survived destruction was "Go Away Ghost Ship", and that version of the episode continues to air on Boomerang and is available on DVD. All other episodes were remastered from other prints.
* Early silent cartoon series like ''FelixTheCat'' and {{Disney}}'s ''OswaldTheLuckyRabbit'' have many missing episodes, as the rights holders weren't careful about keeping track of the source materials. Of 150+ silent Felix cartoons, only about two-thirds have apparently survived the ravages of time. Of Disney's 26 Oswald shorts, they've released only 13 on DVD - a couple more exist, including "Poor Papa" and "Hungry Hoboes", but they have yet to see any kind of release.
* Two highly anticipated second season episodes of ''ComicStrip/TheBoondocks'' never aired on TV in the US, due to legal threats from various people associated with the BET Network (which was a major target of the two episodes: one where Huey protests over BET's programming by going on a hunger strike and the SequelEpisode in which Uncle Ruckus gets his own reality show and discovers through a [=DNA=] test that he is African-American, and not a white man with "reverse vitiligo"). They were released on DVD and [=iTtunes=], but there's still no word on if they will ever see the light of day on Creator/AdultSwim.
** According to [[WordOfGod Aaron McGruder]], there was a pilot made back when [[WhatCouldHaveBeen the show was originally being pitched to FOX]] that was never aired, but was occasionally shown at conventions.
* The original pilot for the sadly short-lived ''WesternAnimation/FatherOfThePride'' never aired on the NBC run, and even failed to appear on the DVD release. It eventually popped up on Sky One in the UK. In addition to the pilot, three other episodes were produced but left unaired due to NBC's decision to cancel the series. One of them, like the pilot, ended up on Sky One in the UK.
* ''WesternAnimation/TheRenAndStimpyShow'' rolled out its own "Missing Episode" just after the end of the show's first run, though this may have been nothing more than a publicity stunt. The countless episodes yanked after one showing would be more serious. (Remember Mr. Horse's presidential bid? Yeah, neither do we.)
** A legitimate lost episode, entitled "Man's Best Friend", would have aired in 1992, but did not, due to an incredibly violent scene in which Ren beats his and Stimpy's new owner, George Liquor, within an inch of his life with an oar. It did not air in the United States until Spike TV aired it as part of the ''Ren & Stimpy Adult Party Cartoon'' series in 2003.
** ''Adult Party Cartoon'' itself suffered an early cancellation as a result of this, at least nine episodes were planned, but due to unmet deadlines, the show was pulled and only six episodes were made, three of which weren't shown at all outside DVD releases. Out of the three unfinished episodes, at least one, "Life Sucks", was storyboarded and voice recorded.
* Here's a missing segment of an episode: the ''SchoolhouseRock'' episode "Science Rock" reaired in 1979 and was supposed to air a segment titled "The Greatest Show on Earth", which weather was its main subject. Before the episode aired, the Ringling Bros.-Barnum and Bailey Circus Company objected to using the trademarked name as its title. As a result, ABC left this segment off the episode and also did not include it in the 1995 Science Rock VHS, either. It finally made its first appearance in the 30th Anniversary DVD under the name "Weather Show", but the references to the title were awkwardly and obviously edited.
* The animated adaptation of ''WesternAnimation/TheMask'' only aired seasons one and three on CBS. An entire season of episodes (one of which is the infamous "Flight as a Feather" episode) didn't air on CBS, but did find a home in syndication and on overseas Cartoon Network channels.
* ''WesternAnimation/AdventuresOfSonicTheHedgehog'' was hit with this a couple of times:
** The episode "Mass Transit Trouble", much of which revolves around a terrorist plot by Dr. Robotnik to destroy the Mobius transportation system with time bombs, was withdrawn from syndication following the Oklahoma City bombing and was never released on VHS, due to the similarities between the plot and the bombing itself. Eventually, Toon Disney picked up the episode and reran it for quite a while, then was pulled again (and yanked off any future DVD releases until 2008) after 9/11 [[TooSoon for the same reasons]]. It was not available anywhere until Shout! Factory released the episode on the "Volume 2" DVD and has now been allowed to rerun again.
*** Rumor has it that the episode was close to not being produced ''at all'', thanks to [[http://en.wikipedia.org/wiki/Warrington_bomb_attacks very]] [[http://en.wikipedia.org/wiki/1993_World_Trade_Center_bombing similar]][[http://en.wikipedia.org/wiki/1993_Bombay_bombings events]] during production of the episode. Somehow they finished the episode and aired it anyway, and surprisingly to no controversy.
** For years there were rumors circulating that the original pilot episode of the show existed somewhere. A workprint of the halfway-completed pilot episode featuring the character dialogue albeit lacking sound effects and music was screened by DIC to representatives of Creator/{{ABC}} when [[WhatCouldHaveBeen the concept was pitched to the network]], who ultimately turned it down and requested DIC come up with [[WesternAnimation/SonicTheHedgehog another concept]]. While the original concept ended up becoming ''Adventures of Sonic the Hedgehog'' and was placed into syndication, the pilot itself was never finished, with parts of the pilot recycled for later episodes (including a notable part where Dr. Robotnik tries to crush Sonic with a giant weight, which was used as the series' closing credits). Nobody could manage to find the workprint for years until it eventually appeared on the internet, courtesy of lead animator Milton Knight, and was uploaded on YouTube.
* ''WesternAnimation/BuzzLightyearOfStarCommand'' had a VerySpecialEpisode that aired exactly twice before being removed from circulation. It used [[ILoveNuclearPower superpowers caused by phasing through radiation]] as metaphor for drugs, complete with ensuing withdrawal. Disney had apparently noticed the UnfortunateImplications.
** The episodes "Inside Job" and "Conspiracy" were removed from circulation after 9/11, as both episodes dealt with assassination plots against ambassadors by a group of Anti-Galactic Alliance terrorists.
* ''WesternAnimation/TinyToonAdventures'' had two: "Elephant Issues" was eventually banned due to the final short of Buster, Plucky, and Hamton getting drunk off one beer, stealing a car while intoxicated, and ultimately killing themselves. However, it has been released on DVD. "Toons From the Crypt" was initially banned from airing due again due to the final short, which ended with Elmyra digging up the corpses of her dead pets. This short was eventually released on home video and the full episode was eventually allowed to air during reruns on Nickelodeon, while "Elephant Issues" appeared on the third volume DVD.
** These episodes eventually aired again when Creator/TheHub aired the show in reruns.
** The "Spring Break Special" aired only once on Fox in March 1994 and was never seen on TV again for reasons unknown. It finally aired again two decades later on Hub Network for Easter 2014.
* ''WesternAnimation/DextersLaboratory'' had the episode "Rude Removal" where Deedee and Dexter go into a machine that removes all of their rudeness and concentrates it into another version of themselves. This episode was removed for gratuitous swearing and rude gestures such as mooning and middle fingers.
** "Rude Removal" is something of an oddball - they had only meant to show it off in conventions and the like as it never really was meant to be seen on TV. However, ''AdultSwim'' was able to convince them to finally air it in some manner.
*** According to WordOfGod, it was intended to be part of the show's second season but Cartoon Network didn't approve of it.
* ''WesternAnimation/ThomasTheTankEngine'' has had a couple of sort-of instances of this. Based on a single photo, a rumour had been going around that a story called 'The Missing Coach' was filmed but never aired. This was dismissed as speculation until WordOfGod from the technical crew confirmed that it had been half-filmed. The episode would have aired as the 15th episode of Season 2, but showrunner Britt Allcroft felt that the plot point where Donald and Douglas switch tenders would be too confusing for little kids. The other was a number of episodes of a proposed spin-off called ''Jack and the Pack'' that didn't get picked up and which were eventually released three years later on DVD as part of the regular series. The rest of the episodes planned for the spin-off went unmade, and with them, a few characters never saw the light of day.
* ''WesternAnimation/{{Pingu}}'' went through this quite frequently.
** "Pingu's Lavatory Story" was banned from airing in the U.S. due to its blatant depiction of PottyFailure in many scenes, and it was deemed impossible to edit the offending scenes without changing the plot. It continues to rerun elsewhere, including, in the UK, on Creator/TheBBC.
** "Pingu Quarrels With His Mum" was also pulled from American television, due to a shocking scene where [[AbusiveParents Pingu is slapped by his mother for insubordination]]. It was also banned from airing in countries where corporal punishment is a criminal offense. When broadcast on Creator/TheBBC, the offending scene was removed, but [[GettingCrapPastTheRadar the VHS and DVD releases there left the scene intact]].
** The pilot episode as well as "Pingu Dreams" have not been seen on the BBC since 2003. Although the former's reason for pulling is unknown (possibly for a distressing scene where Pingu is physically tortured by bullies), the latter was pulled over the horrifying appearance of the leopard seal that invades Pingu's dream later on in the episode. Pulled for similar reasons two years later was "Pingu Runs Away", where Pingu encounters ice sculptures depicted as freakish monsters after he runs away from home. The appearance of the sculptures were deemed to be too risque for children.
*** None of these episodes have been shown in the U.S. as of 2005.
* The Italian dub of ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' is missing the episode ''[[Recap/MyLittlePonyFriendshipIsMagicS2E15TheSuperSpeedyCiderSqueezy6000 The Super Speedy Cider Squeezy 6000]]'' for unknown reasons. There is proof that the episode has been dubbed (Flim and Flam's VA is listed in the Italian Season 2 credits), but the episode itself never aired. Many people think that it was because of references to alcoholism, but other references to cider in the series (like when Rarity dreams about cider in ''Sisterhooves Social'') are actually kept. Most people think that it will be aired in Season 3, or included in the DVD boxsets as a "Lost Episode".
** In the Latin American dub, the 11th episode of the second season "[[Recap/MyLittlePonyFriendshipisMagicS2E11FamilyAppreciationDay Family Appreciation Day]]" was missing during Discovery Kids' premieres of other season 2 episodes. In fact, it didn't air until after all of season 2 ''and'' Season 3 had premiered, being the most recent episode to premiere in the region (October 2013).
** A weird case of this trope is that the episodes "[[Recap/MyLittlePonyFriendshipIsMagicS2E4LunaEclipsed Luna Eclipsed]]" and "[[Recap/MyLittlePonyFriendshipIsMagicS2E13HearthsWarmingEve Hearth's Warming Eve]]" are skipped when Creator/TheHub reruns the series, despite important world-building happening in both of them. This is because they are holiday episodes, so The Hub will only show them once at those times of the year (if they are shown at all). Considering how much of the schedule this show takes up, those two episodes will only air about one-twentieth as often as any other episode. It also means these episodes have only aired twice each since they premiered. (Oddly, "[[Recap/MyLittlePonyFriendshipIsMagicS2E17HeartsAndHoovesDay Hearts and Hooves Day]]" is not taken out of the rerun schedules despite it being a Valentine's Day episode and bearing far less importance to the series overall than either of the former two.)
* ''WesternAnimation/SouthPark'': Happened to the two-parter episode "200" and "201". The episode "200" aired in rotation for a week before being pulled due to Parker and Stone violating a ban on usage of Mohammed/episodes based around a series of racist cartoons featuring Mohammed and "201" only aired once, with no reruns or repeats due to the two continuing the plot thread over Comedy Central's direct orders. While both episodes were released on DVD in the US (other countries did not get them or even see them), "201" is the heavily edited TV version which Comedy Central edited over Parker and Stone's objection, censoring every mention of Mohammad's name as well as the episode's moral advocating the use of violence and terrorism to get your way.
** Furthermore, while the episodes are available on DVD, they are not available for legal stream. Parker and Stone refused to allow the censored version of "201" to be streamed (having basically disowned the episode and including a disclaimer at the start of the episode, where they basically state that the episode was censored by Comedy Central and not a running joke the two came up with to mock the controversy over "200", like many had assumed it was at first) and as such, both episodes are not available on the South Park Studio website or on any other legal streaming website.
** This is not the first time episodes have been banned: "Not Without My Anus" and "Pip" were removed from rotation by Comedy Central for being filler episodes while "Jared Has Aides" and "Death" were both banned by the network for several years due to content ("Jared Has Aides" for child abuse humor that offended Comedy Central, "Death" for the episode's final scene where the kids decide to become drug addicts when they find their favorite TV show banned). However unlike 200 and 201, the bans were ultimately lifted and were in regular rotation when the show was officially went into syndication.
*** The creation of a syndication package also led to more bannings due to certain episodes being too dirty for syndication or Parker and Stone refusing to allow them to be edited on the grounds of damaging the themes of the episode. "It Hits The Fan" (which is the one where they all say shit) and "Major Boobage" in particular will not show up on local channels that show South Park anytime soon.
** The episodes "200" and "201" also pointed out that the earlier episode "The Super Best Friends" visually portrayed Mohammed without getting in trouble. Following the backlash of "200" and "201," "The Super Best Friends" was retroactively banned (though the season five DVD made before the Mohammad debacle has the episode as it used to be).
* ''WesternAnimation/RegularShow'''s first season episode "The Unicorns Have Got to Go" has never been shown in several Eastern and Central European countries, such as Poland, Hungary and Romania. The reason for its exclusion is unknown.
** It has also been rarely aired in the U.S. as well, though the reasoning behind it could be because of the crude humor that was a little too AdultSwim for Cartoon Network (Mordecai drinking "unicorn slop," the unicorns pissing on the lawn, and the unicorns farting in Rigby's face). It was later included on The Complete First and Second Seasons DVD.
** Likewise, none of the Halloween specials have ever been shown in some of those regions.
* Somewhere in the vaults of Nickelodeon[=/=]Creator/KlaskyCsupo's library lies ''WesternAnimation/RugratsGoWild'' in its original form as a 90-minute television special. Apparently test screenings were so positive, [[ExecutiveMeddling Paramount decided to shelve the television special in favor of remaking it as a feature film]].
* Although the thirteen episodes of the 1975 [[Creator/TheBBC BBC]] animated series ''Bod'' are still readily available, its companion series, ''Alberto Frog and his Amazing Animal Band'', was not so fortunate. A victim of the 1993 children's television purge (see MissingEpisode/LiveActionTV for details), only five episodes of the original thirteen are known to survive; they were released on the ''Bod'' DVD collection in 2004.
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