History WhatHappenedToTheMouse / LiveACtionTV

** In a sense, this trope is {{deconstructed}} in the Season 6 episode "[[Recap/StarTrekTheNextGenerationS6E11ShipInABottle Ship in a Bottle]]". The holographic [[Literature/SherlockHolmes Professor Moriarty]] from Season 2's "[[Recap/StarTrekTheNextGenerationS2E3ElementaryDearData Elementary, Dear Data]]" gets accidentally revived, [[AndIMustScream having been fully conscious of waiting in the nothingness of the holodeck's systems]] and disappointed with Picard not making good upon his promise to extend his life beyond the holodeck, prompting him to seize control of the ''Enterprise'' unless Picard conceives of a way to do so for himself and his holographic LoveInterest, Countess Regina.

** Sinclair's [[LoveInterest fiancée]] (who he proposed to at the end of Season 1!), is never seen or mentioned on the show again. The [[AllThereInTheManual supplemental material]] provides a fate for her.

Screenshots of ''Series/PowerRangersCosmicFury'' seem to indicate that Adam and Aisha at least are or have joined S.P.A., S.P.D.'s predecessor. It is likely that Rocky and Tanya's fates (along with the fates of other characters like Trini) will be revealed.

* Most of the side characters from ''Series /TheEndOfTheF***ingWorld'' (Teri, Eunice, Alyssa's dad) all disappear without a trace in season 2.

** The US airing has this with regards to [[{{Bowdlerise}} BBC America cutting the change room scene out]] -- the audience is left wondering where the Doctor got his outfit from.

** The Moment superweapon who had been guiding the War Doctor via InterfaceWithAFamiliarFace completely disappears from the plot after the three Doctors agree to not use it for the destruction of Gallifrey as neither the box nor its interface as Bad Wolf are seen again. WordOfGod is that she was meant to have a chat with the Eleventh Doctor in the wrap-up scene at the National Gallery but once they had secured Creator/TomBaker to make a cameo as [[spoiler:the Curator]], that narrative role was given over to Baker's character at the cost of dropping the Moment's involvement in the story.

* The After School Special from TheEighties ''Maricela'', about a young El Salvadorian refugee whose mother works for a middle class WASP family with a teenage girl of its own, it is established that the title character's mother is possibly an illegal immigrant who could face deportation, and that Maricela's father is trapped in the middle of a Salvadoran civil war. However, both of these potentially interesting plot points are forgotten at the climax of the special, when the WASP-y girl learns an important lesson about tolerance and rescues Maricela.

* ''Series/{{Castle}}'': While Captain Gates' exit on Season 8 got an explanation, the same can't be said about recurring character Tory Ellis, who was dropped in favor of the new character Vikram.

** In the first season, Vorenus is made a senator by Julius Caesar. In the second season, this is seemingly forgotten about, even though people were made senators for life.

* Lynne Kresge, Presidential aide, falls several stories down a stairwell when she tries to President Palmer of the plot to impeach him in the second season. After she's wheeled into an ambulance, she's never seen again, and no one comments on her disappearance.

* Lynne Kresge, Presidential aide, falls several stories down a stairwell when she tries to get incriminating evidence on Mike Novick to David Palmer in the second season. After she's wheeled into an ambulance, she's never seen again, and no one comments on her disappearance.

** In the pilot episode, the crew acquire a Suliban cell-ship, which is used once in the later episode "[[Recap/StarTrekEnterpriseS2E08TheCommunicator The Communicator]]" to rescue captured officers on a pre-warp planet, and is never mentioned again.
** In the episode "[[Recap/StarTrekEnterpriseS3E19Damage Damage]]", Archer is forced by circumstances to steal a warp coil from an Illyrian ship, leaving them stranded 3 years from home. That the Illyrians' fate is unresolved ''in that episode'' is dramatically necessary. Oddly however, once diplomatic relations with the Xindi improve in future episodes, Archer apparently doesn't bother to ask them to assist the Illyrians.

** Ensign Samantha Wildman played a major supporting role in the early seasons, as she gave birth to a daughter named Naomi, who would [[SoapOperaRapidAgingSyndrome grow to school age within a year or two]] thanks to [[BizarreAlienBiology Bizarre Half-Alien Biology]] and become one of ''Voyager''['=]s most enduring recurring characters. The same could not be said for her mother: in one episode, Naomi must deal with the uncertainty surrounding a dangerous mission her mother may not survive. Happily, she does survive and the episode ends with mother and daughter reunited, but in a weird situation, Samantha never appeared again; while her daughter mentions her with some regularity as being alive, Naomi is basically treated like a ward of the crew, and Seven of Nine in particular. Samantha is not entirely forgotten: she is mentioned as having returned to Earth with the rest of the crew in the finale, and she even appeared in a flashback to the first year of ''Voyager''[='=]s journey. This last point is perhaps the oddest one of all, since the actress was still available for the flashback, it almost seems like the show's staff couldn't always remember whether she was meant to still be alive.

** Ensign Samantha Wildman played a major supporting role in the early seasons, as she gave birth to a daughter named Naomi, who would [[SoapOperaRapidAgingSyndrome grow to school age within a year or two]] thanks to [[BizarreAlienBiology Bizarre Half-Alien Biology]] and become one of ''Voyager'''s most enduring recurring characters. The same could not be said for her mother: in one episode, Naomi must deal with the uncertainty surrounding a dangerous mission her mother may not survive. Happily, she does survive and the episode ends with mother and daughter reunited, but in a weird situation, Samantha never appeared again; while her daughter mentions her with some regularity as being alive, Naomi is basically treated like a ward of the crew, and Seven of Nine in particular. Samantha is not entirely forgotten: she is mentioned as having returned to Earth with the rest of the crew in the finale, and she even appeared in a flashback to the first year of ''Voyager'''s journey. This last point is perhaps the oddest one of all, since the actress was still available for the flashback, it almost seems like the show's staff couldn't always remember whether she was meant to still be alive.

** While Tommy and Kat's absences were explained as them moving to another city or country for further education, Rocky, Adam, and Tanya's fates after they step down as Rangers were never elaborated on. Adam's appearances in ''In Space'' and ''Operation Overdrive'' imply he never left Angel Grove.
--> Screenshots of ''Series/PowerRangersCosmicFury'' seem to indicate that Adam and Aisha at least are or have joined S.P.A., S.P.D.'s predecessor. It is likely that Rocky and Tanya's fates (along with the fates of other characters like Trini) will be revealed.