[[quoteright:244:[[KimPossible http://static.tvtropes.org/pmwiki/pub/images/33333_9123.jpg]]]]
[[caption-width-right:244: This doesn't even ''begin'' to cover [[WeirdnessMagnet the weird things]] that you will frequently see on the Middleton High sign.]]


If a CouchGag is where something different shows up every time in the opening sequence, this is where something from the episode itself is always different. Not just the obvious story telling devices like characters, plot, and settings, (though it can play into them,) but rather more mundane things that are different just because they can be.

A subtrope of RunningGag.

May often overlap with UnlimitedWardrobe if most characters in the series are usually subjected to LimitedWardrobe, and one is different just because they can be.
----
!!Examples:

[[foldercontrol]]

[[folder:Anime And Manga]]
* In ''LightNovel/IsThisAZombie'', Ayumu's fantasies of [[TheVoiceless Eucliwood]] are voiced by a different {{Seiyuu}} (frequently well known, but less commonly heard from nowadays) each episode. There is even a scrolling text placed onscreen saying who the {{Seiyuu}} is this week. This running gag is held up in the dub version as well, featuring and appropriately crediting such actresses like Creator/AlexisTipton, Creator/TiaBallard, Creator/LuciChristian, Creator/LeahClark, Creator/KaraEdwards, Creator/JamieMarchi, and Creator/CarliMosier, to name a few.
* In ''Manga/SayonaraZetsubouSensei,'' the writing on the blackboard in the classroom, and a lot of writing seen elsewhere, will change in every ''shot,'' mid-conversation.
[[/folder]]

[[folder:Comic Books]]
* Weird Pete's [[HonestJohnsDealership Games Pit]] in ''ComicStrip/KnightsOfTheDinnerTable'' has different signs (and occasionally graffiti) at each appearance. Some of the messages relate to the current plotline; others are stand-along jokes.
[[/folder]]

[[folder:Literature]]
* Ms. Frizzle from ''Literature/TheMagicSchoolBus'' will change her dress in every book to reflect the subject being covered.
* Someone or something with the name "Shuttleworth" appears in nearly every ''Literature/AuntDimity'' book. Occasionally, it will be attached to a minor character with actual lines, such as Rev. and Mrs. Shutttleworth of Penford Harbour in ''Aunt Dimity and the Duke''. It was also the name of an inn in Salisbury that Lori had once visited, and which she used as part of her cover story for Simon's visit to the hospital in ''Aunt Dimity Takes a Holiday''. Most often, it is someone no longer on the scene due to death, or someone never seen yet referenced because they perform some plot function. Two of the references are from Finch (and possibly the same person), a Miss Shuttleworth once ran the village tea room, and Dimity names a Patricia Shuttleworth whose dog's unlikely victory in the local dog show caused a "kerfluffle". The same Shuttleworth (an art teacher in the nearby market town of Upper Deeping) is mentioned in ''Aunt Dimity and the Family Tree'' and 'Aunt Dimity and the Village Witch''. The name also appears on the tombstones of a family that died in an epidemic in Bluebird, Colorado; as one of Bill's clients whose demands keep him in London; as the pseudonym Sir Percy Pelham used to scout out Erinskil before his purchase of his island castle; and [[spoiler: Mr. Barlow's Whitby informant on Prunella Hooper and Peggy Kitchen's secret son]].
[[/folder]]

[[folder:Live Action Television]]
* ''Series/{{Friends}}'': The Magna Doodle in Chandler and Joey's apartment has a different picture each time.
** When Joey's stupidity leads to them getting robbed, we see the thieves wrote, "[[KickTheDog Thanks for your stuff!]]"
* The picture on ''Series/MurphyBrown's'' DartboardOfHate.
* The funny message on Frank's trucker cap on ''Series/ThirtyRock.''
* ''Series/ThePrisoner'' has a subtle ''aural'' example: the section of the opening theme tune accompanying the scene where the future Number 6 confronts his boss is remixed to emphasize different instruments in each episode.
* The number on the whiteboard in ''Series/{{Battlestar Galactica|Reimagined}}'' is a more-serious-than-usual example. It counts the population of the fleet and ticks down over the course of the series.
* ''Series/PoliceSquad'' had a few:
** Once an episode, Inspector Frank Drebin would visit [[InformationBroker Johnny the Shoeshine Guy]] for "the word on the street". After getting oddly detailed information from Johnny, Frank would leave and someone else would come, asking for (and receiving) advice specific to their line of work. This second person was different every episode--a heart surgeon, a theologian, Dick Clark, etc.
** Any time Frank Drebin parked his car, he would hit another car or some garbage cans. With every episode, the number of garbage cans he hit at once would increase.
** [[CreditsGag The opening credits of every episode]] would feature a different guest star. [[DeadStarWalking Who would invariably die before the credits ended.]]
** The first episode parodied the practice of playing the end credits over a freeze frame, by leaving the cameras rolling while the actors just stand really still. Every subsequent episode introduces a different variation on this gag: the actors all freeze while a chimpanzee trashes up the office in the background; an arrested criminal notices that everyone else is frozen and tries to escape; the actors continue pouring a cup of coffee during the credits until the coffee mug overflows, etc.
* One episode of ''Series/TheWestWing'' has CJ given a goldfish as a pet. It doesn't appear in every subsequent episode, but if Gail's bowl does make it into a shot it will include an ornament referencing that episode's plot.
* In the same vein, there's the ornament in Dorothy's goldfish bowl in ''Series/ElmosWorld''.
[[/folder]]

[[folder:Webcomics]]
* The specials at Coffee of Doom in ''Webcomic/QuestionableContent'' change every in-comic day.
[[/folder]]

[[folder:Web Original]]
* ''WebVideo/TheSpoonyExperiment'': Spoony does most of his reviews just sitting in a green chair while you can see posters hanging on the walls in the room corner directly behind him. In pretty much every review he does, he changes those posters to reflect something relevant to the review itself, usually a movie poster or wallscroll of the movie or game he's reviewing. If it's anything ''Franchise/{{Highlander}}'' related, it'll usually be a poster of that movie. Anything Japanese game related, expect to see wallscrolls of the game or of CowboyBebop: The Movie.
* Similarly, ''WebVideo/TheAngryVideoGameNerd'' would often switch up his background posters hoping people would spot the references. [[/folder]]

[[folder:Western Animation]]
* As seen by the trope image, the sign outside Middleton High on ''WesternAnimation/KimPossible.''
* The sign outside Charles Darwin Middle School in ''WesternAnimation/MyGymPartnersAMonkey.'' Lampshaded when it says "This sign changes a lot."
* The sign outside the pet shop in ''WesternAnimation/FishHooks''.
* The sign at the First Church of Springfield in ''WesternAnimation/TheSimpsons'', whenever it appears.
* On ''WesternAnimation/TheWeekenders'', the pizza restaurant the characters visit to each week always has an outlandishly different theme; ranging from a Medievel Dungeon theme [[LockedInTheDungeon (where Pizza is 'tortured' into slices)]], a [[SpyFiction Spy]] [[NoirEpisode Noir]] theme (where the Pizza is served in briefcases ([[{{squick}} and containing microfilm in the crust]])) and even having a 'Clearance Sale' theme one time... [[MindScrew for Pizza! Try and wrap your mind around that one]].
** There's also the museum that offers a sample of different exotic food in most episodes, as well as Tino's Mom's [[NauseaFuel bizarre]] (yet apparently healthy) cooking.
* The chief of ''WesternAnimation/TheSecretShow'' changes his name every episode for security reasons.
* Kimiko from ''WesternAnimation/XiaolinShowdown'' has an UnlimitedWardrobe where she's always wearing a different outfit (and often hairstyle) in each episode simply because she can. '''Everyone''' else in the show is subject to a LimitedWardrobe, with a few special occasions as the plot of the episode demands.
* On ''WesternAnimation/BobsBurgers'', the Burger of the Day that is posted on the wall changes every episode. It will also change during episodes that take place over multiple days.
** During the intro, the building on the right changes every episode, and since Season 2, the truck that drives in front of the family also changes.
* In ''WesternAnimation/{{Squidbillies}}'', Early Cuyler's hat says something different in every episode.
* If the vet is involved, the animals that come and go in ''WesternAnimation/MarthaSpeaks''
* In ''WesternAnimation/GravityFalls'', [[SweaterGirl Mabel]] wears a different sweater every episode, more if the episode takes place over several days.
[[/folder]]

----