History ContinuityNod / WesternAnimation

* In one episode ''WesternAnimation/AroundTheWorldWithWillyFog'', Rigodon recoils in horror when he is told that a ship he hopes will take the travellers to Japan is instead bound for India. During the Indian arc, he was chased by several monks who were angry that he and Tico had violated their temple. Shortly after that, Fog's entire party found themselves stranded in the jungle, where they were nearly killed by the bloodthirsty cult from whom they rescued Romy. Then, just as the travellers made it to Calcutta, Rigodon and Tico were arrested over the incident with the monks. After all that, it's not surprising that Rigodon never wants to set foot in India again.

-->'''Sokka''': His [Pu Wan Tin] sources include singing nomads, pirates, prisoners of war, and a surprisingly knowledgeable merchant of cabbage.

-->'''Cleveland:''' I need to stop taking baths during Peter's shenanigans.

-->'''Judge''': Okay, can I ask everyone to please stop saying "Oh, no!" in this courtroom? 'Cause the fucking Kool-Aid guy's gonna keep showing up! Thank you.

-->'''Spike''': Easy peasy [[Recap/MyLittlePonyFriendshipIsMagicS2E15TheSuperSpeedyCiderSqueezy6000 Cider Squeezy]]!

-->'''Smithers:''' That's Homer Simpson, sir. All the recent events in your life have revolved around him in some way.\\

-->'''Bart:''' I'm Bart Simpson. [[Recap/TheSimpsonsS1E12KrustyGetsBusted I saved you from jail]].
-->'''Krusty the Clown:''' Er, I...
-->'''Bart:''' [[Recap/TheSimpsonsS3E6LikeFatherLikeClown I reunited you with your estranged father]].
-->'''Krusty the Clown:''' Er, uh, I don't know...
-->'''Bart:''' [[Recap/TheSimpsonsS4E22KrustyGetsKancelled I saved your career, man! Remember your comeback special?]]
-->'''Krusty:''' Yeah, well, what have you done for me lately?
-->'''Bart:''' I got you that Danish.
-->'''Krusty the Clown:''' And I'll never forget it.

-->'''Marge:''' Homer, I don't want guns in my house! Don't you remember when Maggie shot Mr. Burns?\\

* In the pilot episode of ''WesternAnimation/AquaTeenHungerForce'', a large rabbit robot (named the Rabbot) put a large hole in the side of Dr. Weird's laboratory/asylum. The Rabbot-shaped imprint remained on the wall of his lab for the rest of the first two seasons and the movie, even playing a major role for how his creations escape or how leprechauns break in to steal his inventions.
** The Aqua Teens' television is destroyed in nearly every episode. However, in "The Cloning" after Shake shoots the television with a flaming arrow, Frylock complains about everyone he destroyed throughout the series.

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* In the pilot episode of ''WesternAnimation/AquaTeenHungerForce'', a large rabbit robot (named the Rabbot) put a large hole in the side of Dr Weird's laboratory/asylum. The Rabbot-shaped imprint remained on the wall of his lab for the rest of the first two seasons and the movie, even playing a major role for how his creations escape or how leprechauns break in to steal his inventions.

* In ''WesternAnimation/CentralPark'', Season 1 "[[Recap/CentralParkS1E10AFishCalledSnakehead A Fish Called Snakehead]]",when Paige brings up Bitsy wanting to buy Central Park and the mayor helping her, Owen starts anxiously rubbing his hands on his shorts like he did in "[[Recap/CentralParkS1E5DogSprayAfternoon Dog Spray Afternoon]]". And Cole and Helen are still on good terms from the same episode.

*** The movie was full of continuity nods. References to previous episodes were shown throughout the episode.

** The entire Cadmus Arc from ''Justice League Unlimited'' is essentially based off of the last episode from ''WesternAnimation/SupermanTheAnimatedSeries'', and indeed, its conclusion refers to events as far back as the middle of the show's second season.

** In the same show, there is an odd example of a MythologyGag becoming a sort of retroactive ContinuityNod: the elderly Bruce Wayne's pet Great Dane is named Ace, which was also the name of the Bat-Hound, Batman's pet dog who appeared in his comics during the 1950s and '60s. In a later episode, though, we learn about one of his later adventures as Batman, and the name of "Ace" takes on a whole new meaning: [[spoiler:Namely, the suggestion that Ace is named after Ace of the Royal Flush Gang, whom Batman stayed with as she slowly died in the ''WesternAnimation/JusticeLeagueUnlimited'' episode [[Recap/JusticeLeagueUnlimitedS2E13Epilogue "Epilogue"]].]]

** ''Recap/StarWarsRebelsSparkOfRebellion "Spark of Rebellion"]]:

** In the pilot, Grint and Aresko harass a Lothal citizen over jogan fruit, which were first introduced in ''WesternAnimation/StarWarsTheCloneWars''.
** In the pilot movie, the Empire makes the same mistake they did in ''Film/ReturnOfTheJedi'', jamming the Rebels before the trap was fully sprung.
** In "Droids in Distress", Bail Organa checks R2-D2 to find more about the rebels while on an Alderaan Diplomatic ship, a nod to how his adopted daughter Leia uploads a message to R2-D2 during ''Film/ANewHope'' while her Alderaan Diplomatic ship is being boarded by the Empire.
** "Breaking Ranks" features Kanan and Hera stopping a Kyber crystal from being delivered to the Empire. In the ''WesternAnimation/StarWarsTheCloneWars'' "Crystal Crisis on Utapau" story reels, a giant Kyber crystal was featured as the MacGuffin that Obi-Wan and Anakin tries to prevent from falling into Grievous's hands, and it's heavily implied to be the power source of the Death Star's laser.
** The episode also resembles "Death Trap" from ''The Clone Wars'' in that a boy who's more skilled than his peers (Boba Fett/Ezra Bridger) infiltrates the army ranks as a cadet.
** In "Out of Darkness", the rhydonium Sabine uses were also used by clone commando Gregor in ''WesternAnimation/StarWarsTheCloneWars''.
** In "Path of the Jedi", Yoda appears to Ezra as a swarm of fireflies; Qui-Gon Jinn appeared to Yoda the same way in the Yoda arc for ''WesternAnimation/StarWarsTheCloneWars''.
** Also in "Path of the Jedi", when Kanan questions how Yoda can commune with him, he responds with "I am here because you are here". Qui-Gon said the same thing to Obi-Wan on Mortis in ''WesternAnimation/StarWarsTheCloneWars'', when Obi-Wan questioned Qui-Gon's presence.
** We get to see how Jedi obtain their lightsaber crystals, which was also previously introduced in ''WesternAnimation/StarWarsTheCloneWars''.

** [[OncePerEpisode Every episode]] has in some way a background character with the same voice but never commented on. In the SeriesFinale they're captured by a guy seeking revenge against them but they don't recognize who He is. Turns out the voice was the same guy every time and goes on about Stoker and Hoop ruined His life, accompanied by a montage of His appearances.

* The effective use of this in ''Disney/AladdinAndTheKingOfThieves'' is considered by many to be what made that movie better then the first sequel to ''Disney/{{Aladdin}}'', ''Disney/AladdinTheReturnOfJafar'', which entirely relied on the events of the first movie. That, and Creator/RobinWilliams returning as Genie. Also in ''King of Thieves'' several characters from [[WesternAnimation/AladdinTheSeries the TV series]] such as Sandira and King Uncouthma and his family cameo at Aladdin and Jasmine's wedding.

* The ChristmasSpecial ''WesternAnimation/RudolphAndFrostysChristmasInJuly'' has continuity nods to many of the previous [[Creator/RankinBassProductions Rankin-Bass]] specials. Aside from ''WesternAnimation/RudolphTheRedNosedReindeer'' and ''WesternAnimation/FrostyTheSnowman'' (as well as their sequels, ''Rudolph's Shiny New Year'' and ''Frosty's Winterland Wonderland''), reference is made to ''WesternAnimation/SantaClausIsCominToTown'' and ''WesternAnimation/TheYearWithoutASantaClaus''.

** Pinkie Pie is the only person in the audience who enjoys Spike's rendition of the Cloudsdale anthem. She even shouts "Nailed it!" at the end. This is an inverse of the scene from "[[Recap/MyLittlePonyFriendshipIsMagicS1E21OverABarrel Over a Barrel]]", where Spike was the only person in the audience to enjoy Pinkie's "You Gotta Care, You Gotta Share" song.

*** And once again in Magical Mystery Cure, where she is miserable due to being stuck with Applejack's destiny.

** "[[Recap/MyLittlePonyFriendshipIsMagicS2E2TheReturnOfHarmonyPart2 The Return Of Harmony, Part 2]]" features two short segments with several clips taken from previous episodes, when [[spoiler:Twilight and Applejack's memories are being restored.]]

** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E18AFriendInDeed A Friend In Deed]]", Rainbow Dash is shown in Twilight's library reading a Daring Do novel, a hobby that she picked up in "[[Recap/MyLittlePonyFriendshipIsMagicS2E16ReadItAndWeep Read It and Weep]]". We see her with a Daring Do novel again while hanging out next to the pool in "[[Recap/MyLittlePonyFriendshipIsMagicS3E3TooManyPinkiePies Too Many Pinkie Pies]]"

** In "[[Recap/MyLittlePonyFriendshipIsMagicS2E1TheReturnOfHarmonyPart1 The Return of Harmony, Part 1]]", Sweetie Belle corrects Applebloom by telling her "victoryful" isn't a word. Scootaloo asks "What are you, a dictionary?" In "[[Recap/MyLittlePonyFriendshipIsMagicS2E11FamilyAppreciationDay Family Appreciation Day]]", Applebloom rapidly lists synonyms for "embarrassed", prompting Scootaloo to ask her the same question (the same recording was even used).
** Possibly the most subtle is from the season 3 finale, Magical Mystery Cure. Check how long it takes for Rainbow Dash to clear the skies [[spoiler:after Rarity has been screwing up Rainbow Dash's job]].
** One ''definitely'' worth mentioning is the insane pony that barks like a dog in "[[Recap/MyLittlePonyFriendshipIsMagicS2E20ItsAboutTime It's About Time]]". Fast-forward to "[[Recap/MyLittlePonyFriendshipIsMagicS3E8JustForSidekicks Just For Sidekicks]]" in Season 3, and we catch a glimpse of the same pony who has since recovered a great deal and is on her way to being fully sane.
** "[[Recap/MyLittlePonyFriendshipIsMagicS4E23InspirationManifestation Inspiration Manifestation]]":\\\
Spike mentions Owlowiscious' bow tie that Rarity made for him in "[[Recap/MyLittlePonyFriendshipIsMagicS1E24OwlsWellThatEndsWell Owl's Well That Ends Well]]".\\\
During the prologue, various pony families are seen together setting up the fair, including [[Recap/MyLittlePonyFriendshipIsMagicS2E22HurricaneFluttershy Thunderlane and Rumble]], [[Recap/MyLittlePonyFriendshipIsMagicS2E11FamilyAppreciationDay Diamond Tiara and Filthy Rich]], [[Recap/MyLittlePonyFriendshipIsMagicS2E5SisterhoovesSocial Sweetie and her (and Rarity's) parents (without their vacation clothes), and Dinky and Amethyst Star]].
** "[[Recap/MyLittlePonyFriendshipIsMagicS4E24EquestriaGames Equestria Games]]":\\\
Shining Armor is wearing his captain's armor for the first time since "[[Recap/MyLittlePonyFriendshipIsMagicS2E25ACanterlotWeddingPart1 A Canterlot Wedding]]".\\\
Derpy, despite not competing herself, is still part of Ponyville's delegation, as shown in "[[Recap/MyLittlePonyFriendshipIsMagicS4E10RainbowFalls Rainbow Falls]]", probably as an emergency replacement in case it's necessary.\\\
Pinkie Pie is the only person in the audience who enjoys Spike's rendition of the Cloudsdale anthem. She even shouts "Nailed it!" at the end. This is an inverse of the scene from "[[Recap/MyLittlePonyFriendshipIsMagicS1E21OverABarrel Over a Barrel]]", where Spike was the only person in the audience to enjoy Pinkie's "You Gotta Care, You Gotta Share" song.\\\
Spike wishes that Twilight had some way to turn back time. [[Recap/MyLittlePonyFriendshipIsMagicS2E20ItsAboutTime Twilight does, in fact, know a spell that does something quite similar]], and she looks like she's seriously considering using it.\\\
Twilight being brutally honest with Spike regarding the torch lighting ceremony could be considered a nod to the previous episode's [[AnAesop Aesop]].\\\
Spike's in-universe MemeticMutation of the "easy peasy" couplet.

** "[[Recap/MyLittlePonyFriendshipIsMagicS4E25TwilightsKingdomPart1 Twilight's Kingdom, Part 1]]":\\\
Spike once more reminds us [[Recap/MyLittlePonyFriendshipIsMagicS3E2TheCrystalEmpirePart2 he's the hero of the Crystal Empire]]--[[Recap/MyLittlePonyFriendshipIsMagicS4E24EquestriaGames twice]].\\\
Twilight is freaking out again, this time over [[RoyalsWhoActuallyDoSomething her role as a princess]]. Cue [[Recap/MyLittlePonyFriendshipIsMagicS4E22TestingTesting123 another freak-out aria about freaking out]].\\\
Tirek's brother Scorpan is shown in the story flashback to go off with a unicorn wizard; though the name is not said, this is clearly meant to be Star Swirl the Bearded, based on similar imagery from "Three's a Crowd".\\\
[[Recap/MyLittlePonyFriendshipIsMagicS3E11KeepCalmAndFlutterOn Once more]], Fluttershy is the only one of the Mane Six to find Discord's antics rather amusing.\\\
After Rainbow Dash says, "In your dreams!" Discord replies with, "Oh, I never dream of such things. Ask Princess Luna." This is a reference to Luna's ability to walk into other ponies' dreams as seen in "[[Recap/MyLittlePonyFriendshipIsMagicS3E6SleeplessInPonyville Sleepless in Ponyville]]" and "[[Recap/MyLittlePonyFriendshipIsMagicS4E20ForWhomTheSweetieBelleToils For Whom the Sweetie Belle Toils]]".\\\
When Celestia explains where Tirek came from, it's found in the [[Recap/MyLittlePonyFriendshipIsMagicS1E1MareInTheMoon same book from the first episode and told in the same style, right down to the first shot of the original episode.]]
** "[[Recap/MyLittlePonyFriendshipIsMagicS4E26TwilightsKingdomPart2 Twilight's Kingdom, Part 2]]":\\\
All the ponies who gave the keys to the Mane 6 over the season are shown as the rainbow flies through Equestria.\\\
This is the second time this season we've seen Shining Armor in uniform, and the first time since "[[Recap/MyLittlePonyFriendshipIsMagicS2E25ACanterlotWeddingPart1 A Canterlot Wedding]]" that he's been shown performing his duties as Captain of the Royal Guard.\\\
Cerberus' escape from Tartarus in "[[Recap/MyLittlePonyFriendshipIsMagicS2E20ItsAboutTime It's About Time]]" is directly mentioned, and cited as the most likely reason Tirek was able to escape.

** In "[[Recap/TheSimpsonsS14E4LargeMarge Large Marge]]", Bart's plan to help Krusty regain his popularity involves the help of [[TheBusCameBack his old friend]], [[Recap/TheSimpsonsS5E17BartsGetsAnElephant Stampy]]

* The ''WesternAnimation/CourageTheCowardlyDog'' episode "Mega Muriel the Magnificent" mentioned events that have happened in four previous episodes, such as "A Night at the Katz Motel", "Freaky Fred", "Queen of the Black Puddle", and "Snowman Cometh".

** In the episode "Love, AD Style", when Francine tells Stan that Roger shot Haley, Stan recalls the time Hayley shot him in "Haylias" and when he shot Francine in "Hurricane!".

* The newspaper at the beginning of the ''Franchise/WallaceAndGromit'' short "WesternAnimation/TheWrongTrousers" bears the headline "MOON CHEESE SALES SOAR", a reference to "WesternAnimation/AGrandDayOut". In ''WesternAnimation/TheCurseOfTheWereRabbit'', [[spoiler:every line Hutch, the rabbit who Wallace has accidentally copied some of his mind into, says is an actual line Wallace said earlier in the film or in one of the shorts]].

** The episode "Ransom Of Cynthia" introduces a plot point involving the adults trying to cut down on the babies'sugar intake and protect their teeth. This same plot is revisited soon after in "Angelica Orders Out".

** In "[[Recap/TheSimpsonsS14E4LargeMarge Large Marge]]", Bart's plan to help Krusty regain his popularity involves the help of [[TheBusCameBack his old friend]], [[Recap/TheSimpsonsS5E17BartsGetsAnElephant Stampy]].
** The plot of the 12th episode of Season 26, "The Musk Who Fell to Earth," has ElonMusk hired by Springfield Nuclear Power Plant, causing it to go near bankrupt. For the remainder of Season 26, this event is often referred to, as the Plant struggles to recoup its losses.

* In ''WesternAnimation/TheSpectacularSpiderman'' episode "Reaction" Spider-Man swoops down to save a nerdy-looking guy and an attractive woman, leaving them tied up together and looking infatuated ("You can thank me later, dude.") In the later episode "Gangland" (set on Valentine's Day) we see that same girl happily accepting the guy's marriage proposal.
* Because ''WesternAnimation/{{SpongeBob SquarePants}}'' runs on {{NegativeContinuity}}, it can be surprising if it reference another past episode:

* ''WesternAnimation/{{SpongeBob SquarePants}}'':