History Trivia / HappyTreeFriends

* SimilarlyNamedWorks: ''Series/TwentyOneJumpStreet'', ''WesternAnimation/CaptainFlamingo'', ''WesternAnimation/TheLoudHouse'', ''Series/StarTrekDeepSpaceNine'', and ''WesternAnimation/TheZetaProject'' all also have an episode titled "Change of Heart".

* BannedEpisode: While part 1 for "Wishy Washy" is still available on Website/YouTube, part 2 was removed for violating its terms of service. It's speculated that either Lumpy's death and hideous corpse or Petunia's [[DrivenToSuicide suicide]] was the reason for the video's removal.[[note]]The latter is arguably the more likely reason, since the site doesn't allow videos displaying an intentional suicide, be it animated or on real-life footage.[[/note]] Even the other segments of the TV episode that featured it, "Four on the Floor", were removed from [=YouTube=] for the same reason. The entirety of "Wishy Washy" can still be watched on Mondo Media's website, and "Four on the Floor" is available on Amazon Prime Video.

* DevelopmentHell: [[https://happytreefriends.fandom.com/wiki/Happy_Tree_Friends:_The_Movie A movie for the show]] was announced to be in pre-production in 2014, but as of 2019, no update on its development has been given since then.

** The LicensedGame adaptations are another matter. [=ROM=]s of the Java mobile games are available on the web and can be emulated, keeping them from being lost. The Flash arcade games have been rendered playable online once more through Ruffle (though the [=SWFs=] for offline play are still circulated around to this day). What is complicated is regarding the [=iOS=]-only content and the [=HTML5=] games. ''Slap Happy'' had long been taken down from the app store and its IPA is hard to come by unless the device is subjected to jailbreaking, and while ''Deadeye Derby'' is surprisingly still playable (albeit with only the same set of rotating events), there is no way to buy real-life merch through the in-game store as the submission form is never sent out to players anymore. The app versions of the [=HTML5=] games were eventually taken down[[note]]Even if a player sideloads them, TechnologyMarchesOn and the OS incompatibility results in the game not running properly if not simply crashing.[[/note]] and even the official website is no longer able to load the web version, though third-party sites managed to preserve them.[[note]]Most notably ''Aggravated Asphalt'', whose only Android version is only available through Amazon of all things, and even then it being always online makes it just as useless when it now always fails to connect to the server.[[/note]]

** Per this [[https://m.facebook.com/story.php?story_fbid=pfbid02uSGQULjzUWvyynCpk2jkGdYBnzZm2rePmJz3ETjXHBL9bcVmWZMiJW9LkXH1E1ovl&id=100064559267491 Facebook story]], Mondo Media had admitted to be screwed over by Website/YouTube's modern guidelines which made publishing "edgy" content (which their catalog, including ''Happy Tree Friends'', consists of) more difficult due to demonetization (the BannedEpisode entry above also does not help). As a result, they attempted reviving the show once more through the channel membership program on [=YouTube=].

* ScrewedByTheNetwork: By 2005, the show was at its peak, and Creator/{{G4TV}}, which at this point was already broadcasting the internet shorts (some of which had just been seen on ''Series/AttackOfTheShow''), picked up a TV adaptation of the show, which premiered in 2006. In the months leading up to the TV series' premiere, G4 and the Happy Tree Friends website both comfortably gave it plenty of advertising, with a small number of the TV series' episodes even being given early previews that were sent to subscribers of the show's now-defunct email fan club. Unfortunately, G4 placed first-run episode broadcasts at the [[FridayNightDeathSlot highly inconvenient]] time slot of midnight Eastern Time on Monday nights[[note]]not even the weekend reruns were able to avoid not being placed in overnight timeslots, with the exception of an early evening timeslot on Sundays[[/note]] with extremely poor promotion, which translated into low ratings, which not only ensured the TV series' cancellation after 13 episodes and the scrapping of a planned second TV season, but also indirectly caused [[AudienceAlienatingEra the show's popularity to crash]], although the show itself luckily [[NotQuiteDead avoided the fate of its characters]]. Making matters worse, the TV series was removed entirely from G4's schedule as soon as the final episode aired, as if it never existed.
* TrollingCreator: The crew did this with Flaky's gender to intentionally have fans argue about it. WordOfGod would eventually confirm she's a girl, though.

** It's confirmed that Flaky is indeed a girl.

*** A fugitive character whose head is phallic instead of round. (species is not clear)

*** An unnamed possum character who is supposed to be Mole's arch-rival.
*** An unnamed female possum character with a flower on her head and small possum(?) plushies stuck on her body.
*** Swami the skunk.

* QuietlyCancelled: Not outright confirmed, but likely. In 2014, the series entered a hiatus that was eventually revealed to have been due to a lack of funds. In order to solve the issue, five new episodes were released for paid digital download in 2016. However, according to a Twitter post by Kenn Navarro a few months later, sales fell below expectations. While he claimed that he remained optimistic for the show's future, no more episodes were released after that, nor was there any significant word on the fate of the show.

* ReclusiveArtist: Of the voice actors who worked on the show, only Kenn Navarro, Ellen Connell, Warren Graff, Nica Lorber, David Winn, and Michael Lipman have given interviews. The others have basically disappeared off the face of the earth since ''HTF'' stopped production of new episodes.

* TheWikiRule: [[https://happytreefriends.fandom.com/wiki/Happy_Tree_Friends_Home The Fandom/Wikia HTF Wiki]], and a brand new and under construction [[http://www.happytreefriendswiki.com/index.php/Main_Page Lumpypedia]].

* WhatCouldHaveBeen: [[WhatCouldHaveBeen/HappyTreeFriends Has it's own page]].

* WhatCouldHaveBeen: A commentary in the First Blood DVD revealed various concepts. That also includes prototypes and unused concepts.
** A few rejected characters:
*** Pranky the bear.
*** Cookie the chef sloth.
*** An unnamed centaur character.
*** A fugitive character whose head is phallic instead of round. (species is not clear)
*** A cyborg bear, with one side of his body being mechanical.
*** Mafia Doctor the deer, possibly based on quack doctors. He has one of his cheeks bandaged, has a broken right arm, has his feet stuck in concrete blocks, and wields a saw.
*** An unnamed monkey.
*** Penny the princess/queen bear.
*** Bunny Bumpkin the, well, country bumpkin.
*** An unnamed bear character in a warrior-like outfit.
*** An unnamed possum character who is supposed to be Mole's arch-rival.
*** An unnamed female possum character with a flower on her head and small possum(?) plushies stuck on her body.
*** Swami the skunk.
*** Meat Face, a character whose head is covered with a bag.
*** Skizzy the tall, skinny squirrel.
*** An unnamed platypus character in a strait jacket.
*** Princess the rabbit.
** Prototypes involving existing characters include: Lumpy being a bear instead of a dinosaur in an early sketch about the pilot episode, Shifty being a squirrel, Pop only donning his hat and having his smoking pipe, Flippy having bandages covering his injuries and having a broken arm, Russell with a long beard, Cub being named Fuzzy, Sniffles being a squirrel, and Flaky having ears and being named Corky.
** Pop was originally going to be in ''Happy Trails Part 2'', but the writers didn't like the idea of him appearing without Cub or murdering Flaky in cold blood. They instead opted for Flippy, which makes it much easier since they were (at the time) voiced by the same person, however, Pop's dialogue was used in the final episode.
** A second TV season was requested by Creator/G4TV, and a promotional poster was even created for press purposes, but it was vetoed by the producers due to how the first TV season got the ScrewedByTheNetwork treatment mentioned above.

** Kenn Navarro has stated that Truffles ''will not'' play a significant role that isn't him being TheCameo. He stays like this because the show must remain faithful to Vote or Die contest results.

*** In "Dunce Upon a Time", when Giggles is about the knock down the bottles with the imprisoned Tree Friends, they are using their older designs.

** Lifty, Shifty, Cuddles and good Flippy are all voiced by Kenn Navarro, although initially, Kenn only did Cuddles' voice.

** Flippy's evil side referred to as "Evil Flippy" is sometimes used as a name on certain blog posts.

* DiedDuringProduction: Peter Herrmann, who voiced Disco Bear, passed away in 2015, in the midst of the 2014-16 hiatus. Disco Bear made no appearances in the ''Still Alive'' episodes released in 2016, and if the series is ever UnCanceled from its [[QuietlyCancelled quiet cancellation]] post-''Still Alive'', Disco Bear will have to be recast if he is to make another appearance.

* QuietlyCancelled: Not outright confirmed, but likely. In 2014, the series entered a hiatus that was eventually revealed to have been due to a lack of funds. In order to solve the issue, five new episodes were released for paid digital download in 2016. However, according to a Twitter post by Kenn Navarro a few months later, sales fell below expectations. While he claimed that he remained optimistic for the show's future, no more episodes were released after that, nor was there any significant word on the fate of the show. The [[DiedDuringProduction 2015 death of Peter Herrmann]], who voiced Disco Bear, likely also played a role.