Outlaw Star (partially lost Toonami edit of anime; 2001)
In 2001, an edited version of the anime Outlaw Star was broadcast on the American Cartoon Network. The show had new lines recorded and footage digitally edited in order for the show to receive a "TV-Y7" rating.
While the majority of Toonami's edited versions such as Blue Submarine No. 6, Gundam Wing, Yu Yu Hakusho and Tenchi Muyo! were released in edited formats on home video, this edited version was never officially released on VHS or DVD for unknown reasons, leaving it lost to time. One possible reason for this may be because of errors in editing that occurred during the initial run, such as the word 'bastard' slipping through in one episode. However, it was broadcast on Adult Swim in 2002.
There have however been reports of people receiving the Toonami edited version on bootleg DVDs, as well as the edited dub of the episode "Maze of Despair" playing as part of the Toonami April Fools event on Adult Swim on April 1st, 2012. Another episode was found via a recording on the Internet Archive. The edited version of episodes 6 and 19 were found via recordings of the Adult Swim broadcasts.
Update: In 2019 most of this lost media was found. It's not all there though. Check the notes below the links for more information.
- Episode 01: Outlaw World*
- Episode 02: World of Desires
- Episode 03: Into Burning Space
- Episode 04: When the Hot Ice Melts
- Episode 05: The Beast Girl, Ready to Pounce
- Episode 06: The Beautiful Assassin
- Episode 07: Creeping Evil
- Episode 08: Forced Departure
- Episode 09: A Journey of Adventure... Huh?
- Episode 10: Gathering for the Space Race
- Episode 11: Adrift in Subspace
- Episode 12: Mortal Combat with the El Dorado
- Episode 13: Advance Guard from Another World
- Episode 14: Final Countdown
- Episode 15: The Seven Emerge
- Episode 16: Demon of the Water Planet
- Episode 17: Between Life and Machine
- Episode 18: The Strongest Woman in the Universe*
- Episode 19: Law and Lawlessness
- Episode 20: Cats and Girls and Spaceships
- Episode 21: Grave of the Dragon
- Episode 22: Gravity Jailbreak
- Episode 23: Hot Springs Planet Tenrei*
- Episode 24: Cutting the Galactic Leyline*
- Episode 25: Maze of Despair*  
- Episode 26: Return to Space*  
Episode 18 is missing its first half (approx.) meaning that episode should still be considered lost.
Episode 23 wasn't originally aired due to its explicit content but was during Toonami's return with some censorship, so that needs adding when found.
Episode 24 is missing a short (and probably unimportant) part of its ending.
Episode 25 was recorded on VHS and was also recorded from a Toonami broadcast that was a 2012 April Fools' joke. Both are provided because they could be censored differently.
Episode 26 has been recovered from different VHS tapes. Because there may be differences (sometimes Bandai overlooked swears and altered the censoring for subsequent broadcasts) both recordings are provided.
All episodes except 1, 25 (only the April Fools' one) and 26 are missing credits and thus the "Next Time" segment. (Obviously, there isn't that segment for episode 26 but it does have the extra scene after the credits.)