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[-[[caption-width-right:350:Batman? [[ThouShaltNotKill Executing someone?]] [[DoesNotLikeGuns WITH A GUN?]][[note]]OK, [[WhatMeasureIsANonHuman so it's a vampire]], but still... Hang on... ''[[CoolVersusAwesome Batman fighting a vampire!?]]''[[/note]]]]-]

->''"As a first season, especially the earlier episodes, there were a lot of goofy ideas that were put in because they were still finding out their place and how they wanted the show to work."''
-->-- '''[[WebVideo/AtopTheFourthWall Linkara]]''', ''WebVideo/HistoryOfPowerRangers'' discussing ''Series/MightyMorphinPowerRangers''

Long running series often have to experiment a little before they find their niche: sometimes there are concepts abandoned early on that were fascinating, either because they were ''potentially'' good ideas back then, or they just clash so much with the [[ToneShift later tone of the series]]. In short, the first installment is a "prototype", like a pilot of a first episode.

If the series improves ''after'' abandoning these elements, it often leads to a GrowingTheBeard moment. For something similar applied to individual characters, see CharacterizationMarchesOn. A specific sub-trope of this dealing with early installments resembling the real world is EarthDrift. When early characters disappear entirely with no explanations, that's ChuckCunninghamSyndrome (or even DroppedAfterThePilot, if it happens in the very first episode). Might be the result of {{Plot Tumor}}s, ArtEvolution and/or EarlyInstallmentCharacterDesignDifference and ContinuityDrift.

There will always be some fans who view the ''current'' incarnation of a series as TheyChangedItNowItSucks, but it also must be said that weirdness in this case isn't necessarily a ''bad'' thing. Plenty of ideas get scrapped in the natural course of a series, some of them perfectly good. Early Installment Weirdness might be synonymous with a time when a plot was more laid back, experimental, pre-ExecutiveMeddling, pre-{{Flanderization}}, or any number of other things. As always, YMMV.

When this happens to ''themes'' that become popular after the fact because of a work, and are only actually codified elsewhere, it is a subtrope of UnbuiltTrope.

Compare NewFirstComics, LostInImitation, EarlyInstallmentCharacterDesignDifference, BreakingOldTrends and AdaptationDisplacement. Contrast FirstInstallmentWins and LaterInstallmentWeirdness. When a character displays this, it's CharacterizationMarchesOn (or {{Flanderization}}, when it essentially happens in reverse). May be the OddballInTheSeries. See also MeetYourEarlyInstallmentWeirdness.

''A special note on the trope in video games: there, it is often the counterpart to SpiritualSuccessor. A series may evolve in a drastically different direction from its first installment in a technical sense, abandoning core gameplay mechanics or changing them in drastic ways, while retaining the setting (general background lore, characters etc.), although elements can be [[ExpandedUniverse added]] or [[RetCon retconned]]. This can happen if the developer for an intellectual property held by a publisher changes or merely if a developer wishes to keep a recognizable, established IP, but adapt to a new player demographic or emulate gameplay seen in another revolutionary title. Such changes result in an early installment weirdness when the sequels are compared with the first installment. In contrast, a game which tries to imitate a forerunner title mostly in gameplay terms (copying/refining particular "revolutionary" aspects, the entire gameplay or just the general "feeling" of the game), but is not part of the forerunners' IP, e.g. if the rights to the IP are held by a different publisher, and so uses a different setting, it's usually a SpiritualSuccessor.''


* EarlyInstallmentWeirdness/{{Advertising}}
* EarlyInstallmentWeirdness/AnimeAndManga
* EarlyInstallmentWeirdness/ComicBooks
* EarlyInstallmentWeirdness/FanFic
* EarlyInstallmentWeirdness/{{Fashion}}
* EarlyInstallmentWeirdness/{{Film}}
* EarlyInstallmentWeirdness/LetsPlay
* EarlyInstallmentWeirdness/{{Literature}}
* EarlyInstallmentWeirdness/LiveActionTV
** EarlyInstallmentWeirdness/GameShows
* EarlyInstallmentWeirdness/{{Machinima}}
* EarlyInstallmentWeirdness/{{Magazines}}
* EarlyInstallmentWeirdness/{{Music}}
* EarlyInstallmentWeirdness/NewspaperComics
* EarlyInstallmentWeirdness/{{Other}}
* EarlyInstallmentWeirdness/{{Pinball}}
* EarlyInstallmentWeirdness/ProfessionalWrestling
* EarlyInstallmentWeirdness/{{Radio}}
* EarlyInstallmentWeirdness/{{Roleplay}}
* EarlyInstallmentWeirdness/TabletopGames
* EarlyInstallmentWeirdness/{{Toys}}
* EarlyInstallmentWeirdness/VideoGames
** EarlyInstallmentWeirdness/{{Pokemon}}[[note]]Also includes examples from Adaptations[[/note]]
* EarlyInstallmentWeirdness/WebAnimation
* EarlyInstallmentWeirdness/WebComics
* EarlyInstallmentWeirdness/{{Websites}}
* EarlyInstallmentWeirdness/WebVideos
* EarlyInstallmentWeirdness/WesternAnimation
* EarlyInstallmentWeirdness/RealLife