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* ActingForTwo:
** Creator/TakeshiAono voiced Nobuyuki and Katsuhito before his 2010 retirement. In the English dub, Jay Hopper voiced both until he left the show, and Bob Papenbrook began voicing both as well.
** Tsunami and Sasami in both the [[Creator/ChisaYokoyama Japanese]] and [[Creator/SherryLynn English]] versions. [[spoiler:Also a bit of a meta-example, not only for fitting the trope itself but for fitting its title literally thanks to Sasami and Tsunami's [[FusionDance fusion link]].]]
* AdaptationSequence: Anime [=OVAs=] —> Novels —> Video games —> Non-canon anime TV series —> Non-canon anime films
* AdoredByTheNetwork: Since it began with the first ''Ryo-Ohki'' OVA in 1992, ''Tenchi Muyo!'' has been one of AIC and Creator/NBCUniversalEntertainmentJapan's most popular anime franchises.
* AmateurCast: The anime's English dub was one of the first uncut anime dubs to use union voice actors (though it was a non-union project until partway through the second OVA). As a result most of the original cast were theater actors who hadn't had much voice acting experience beforehand, (the notable exceptions being Jennifer Darling, Ellen Gerstell, and Sherry Lynn; all of whom had prior experience in western animation productions) and they had no dub roles at all until that point. Most of them didn't have much success afterward. (Debi Derryberry is a notable exception, though she's more well known for her western animation and video game roles.)
* AnimeFirst: Manga were made later.
* CashCowFranchise: On an international level.
* ChannelHop:
** ''Anime/TenchiUniverse'', ''Anime/TenchiInTokyo'' and ''Anime/PrettySammy'' aired on Creator/TVTokyo. For ''Anime/DualParallelTroubleAdventure'' and ''Anime/SasamiMagicalGirlsClub'', it was broadcast on [=WOWOW=]. Then, ''Anime/TenchiMuyoGXP'' aired on Creator/NipponTV. Finally, ''Ai Tenchi Muyo!'' aired on Tokyo MX.
** The third ''Ryo-Ohki'' OVA, ''Anime/TenchiMuyoGXP'', ''Anime/TenchiMuyoWarOnGeminar'' and ''Ai Tenchi Muyo!'' were all distributed by VAP, a record label owned by Creator/NipponTV.
** The fourth and fifth ''Ryo-Ohki'' [=OVAs=] were distributed by Creator/PonyCanyon.
** The North American distribution rights to ''Tenchi Muyo!'' were held by Pioneer Entertainment, which was later renamed Geneon Entertainment USA in 2003. In 2005, Creator/{{Funimation}} released the third ''Ryo-Ohki'' OVA and it would later go on to acquire most of Geneon USA's ''Tenchi Muyo!'' titles shortly after they went out of business in 2007.
* FranchiseOwnershipAcquisition:
** While ''Tenchi Muyo!'' has been owned by Creator/{{AIC}} since the beginning, they negotiated a deal with Toei Agency to jointly share the franchise's copyrights in April 2021.
** The franchise began with Creator/PioneerLDC as their main producer and home media distributor for the two ''Anime/TenchiMuyoRyoOhki'' [=OVAs=], ''Anime/TenchiUniverse'', ''Anime/PrettySammy'', ''Anime/DualParallelTroubleAdventure'', ''Anime/TenchiInTokyo'', and the theatrical films. In 2003, Dentsu wound up with the rights after purchasing Pioneer LDC and renaming it Geneon Entertainment. When Creator/NBCUniversal purchased Geneon from Dentsu in 2008, they acquired the rights to these series as well.
* InternationalCoproduction: ''Tenchi Muyo in Love'' was produced in Japan, while the sound design was done in Los Angeles, California, and the music was primarily recorded in Berlin, Germany.
* LateExportForYou: ''Ai Tenchi Muyo!'' was released on home media in North America in 2018, four years after its Japanese premiere.
* MilestoneCelebration: ''Ai Tenchi Muyo!'' premiered in 2014, the year which celebrates the 20th anniversary of the second ''Ryo-Ohki'' OVA's premiere.
* TheOriginalDarrin: In the English dub of ''Ai Tenchi Muyo!'', Petrea Burchard reprises her role of Ryoko after Creator/MonaMarshall replaced her for the third OVA.
* TheOtherDarrin:
** In Japanese:
*** Yumi Takada retired from voice acting in 2009, and Creator/HaruhiNanao replaced her as Ayeka from ''Ai Tenchi Muyo!'' onwards.
*** Creator/KenUo and Creator/KatsuyukiKonishi replaced Creator/TakeshiAono as the voices of Katsuhito and Nobuyuki Masaki following Aono's retirement in 2010 and death two years later.
*** After Creator/YukoMizutani's 2016 death, Creator/MichieTomizawa replaced her as Mihoshi Kuramitsu (and her mother Mitoto).
*** Creator/YokoSoumi and Creator/ChieNakamura respectively replaced the late Creator/IkukoSugita and Creator/TomokoKaneda as Mikami Kuramitsu and Fuku after the third ''Ryo-Ohki'' OVA.
*** Creator/HirofumiNojima replaced Creator/ShigeruMogi as Seina Yamada after the fourth ''Ryo-Ohki'' OVA.
** In the English dub:
*** Creator/RebeccaForstadt replaced Creator/EllenGerstell as Mihoshi Kuramitsu after the first ''Tenchi Universe'' film.
*** Creator/BobPapenbrook replaced Jay Hopper as Katsuhito and Nobuyuki Masaki starting with ''Tenchi in Tokyo'', and would continue to do so until his 2006 death.
*** Doug Stone replaced Mark Tracy as Azaka beginning with ''Tenchi in Tokyo''.
*** Kamidake had three voice actors. For the first ''Ryo Ohki'' OVA, he was voiced by Phil Fox. Beginning with the seventh episode, he was played by Jack Fletcher. Then, for his appearances in ''Tenchi in Tokyo'', he was voiced by Michael Sorich.
*** Funimation was able to secure the entire cast for OVA 3, except for Petrea Burchard due to her union's increasing wage scale, so Mona Marshall became Ryoko's regular voice actress for that, until Burchard reprised her role in ''Ai Tenchi Muyo!''. Also, Mona Marshall had voiced Noike for her brief cameo in ''GXP'', Kari Wahlgren became her permanent voice for OVA 3.
*** When Funimation picked up ''Ai Tenchi Muyo!'', most of the original cast returned. However, Washu's voice actress, Kate Vogt, had moved away to Portland, Oregon; she was replaced by Creator/KarenStrassman (in a 2022 interview, Vogt mentioned that she was never contacted). Jennifer Darling, Ayeka's regular voice actress, retired in 2015, and she was replaced by Creator/CheramiLeigh.
* RealLifeRelative:
** Creator/AkioOtsuka voices Azusa Masaki Jurai. His wife from 2005 to 2008, Creator/YokoSoumi, has been voicing Mikami Kuramitsu since 2016.
** For the Italian dub of ''The Daughter of Darkness'', sisters Creator/BarbaraDeBortoli and Creator/FedericaDeBortoli respectively voiced Mihoshi and Mayuka.
* RecastAsARegular: Creator/KatsuyukiKonishi voiced Sorunaru in the third ''Anime/TenchiMuyoRyoOhki'' OVA before replacing the late Creator/TakeshiAono as Nobuyuki Masaki in the fourth one.
* RoleReprise: All of the voice actors from the anime reprised their roles for the tie-in video games.
* ScrewedByTheLawyers: Since 2020, the fourth and fifth ''Anime/TenchiMuyoRyoOhki'' [=OVAs=] are streaming on Website/{{Crunchyroll}}, meaning that they are not available to watch on Creator/{{Funimation}}'s website with the first three [=OVAs=], ''Anime/TenchiUniverse'' and ''Anime/TenchiInTokyo'', and vice-versa as of 2024.
* SwanSong: ''Ai Tenchi Muyo!'' was Creator/YukoMizutani's final appearance as Mihoshi Kuramitsu before her 2016 death.
* WordOfGod: OVA continuity. In the end, Tenchi will [[MarryThemAll marry everyone]]. [[TropeNamer That's why we used to call it the]] Tenchi Solution.
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