Trivia: Paramount's press releases in 1967 claimed that the Soviet news agency Pravda had complained about Star Trek having no Russian characters, so they were adding Chekov. This story was completely bogus. (Star Trek never aired in the U.S.S.R.) NBC wanted to appeal to the 8-14 teenybopper crowd, and asked Roddenberry to add a character who looked like Davy Jones of the Monkees. So Chekov debuted in season 2, replete with a bad Beatle wig that was, thankfully, soon jettisoned.Jean G
Trivia: At the very end, in talking about the future of the two characters, Spock says, "We could say that Mr. Seven and Miss Lincoln have some interesting experiences in store for them." While this seems like a strange thing for him to say, this episode was a "backdoor pilot" for a spinoff series with the same title (see Teri Garr's Wikipedia entry). But the idea wasn't sold and Mr. Seven and Miss Lincoln never had any further interesting experiences. The Enterprise's history log was evidently wrong.
Trivia: Some parts of the film Kirk and Spock watch are historical footage, some of it is made specially for this episode. If you look very closely you can see the Fuhrer Adolf Hitler in a car at one of his ceremonies. Beware he is hard to spot, because most of the time his head is behind some flags. (00:06:20)olohzika
Trivia: In this episode, Scotty tries to get a Kelvin drunk. When asked what the liquor is, Scotty says "It is green." In the episode "Relics" (The Next Generation) Scotty asks Data what the unnamed liquor is, Data sniffs the bottle and says "it is... (sniffs)...it is... (sniffs)...it is green"Movie Nut
Trivia: According to the screenwriter David Gerrold, the producers of the show noticed a similarity of the plot line and story concept to Robert A. Heinlein's story "The Rolling Stones" and asked Heinlein for permission to use the idea. Heinlein asked for an autographed copy of the script, but otherwise did not object, noting that both stories owed something to the Ellis Parker Butler's 1905 short story "Pigs is Pigs" and perhaps "Noah". (Source "The Trouble With Tribbles: the birth, sale and final production of one episode" by David Gerrold).Spiritfire
Trivia: Director Marc Daniels employed an old trick to save Nona's topless bathing scene from NBC's censors. He deliberately shot twice the needed footage, including risque side shots exposing portions of bare breast. After the censors excised the "most naked" portions, what remained was precisely what Daniels had wanted to begin with: a bare-backed Nona bathing in the waterfall.Jean G
Trivia: The events and description of the Planet Killer in this episode are referenced in The Next Generation novel "Vendetta." It was in the records Data was examining for a report for Picard. The first one was called a prototype, and the one Picard and crew face is the finished model. Larger, more powerful, and warp capable, this machine was driven by the vendetta of a person that wants revenge on the Borg.Movie Nut
Trivia: This episode (which first aired on October 27, 1967) was the only "holiday-themed" episode of Star Trek TOS. It was supposed to be a Halloween-ish story with witches, a spooky castle, black cats, skeletons and zombies, and there are repeated references to Halloween and "Trick-or-Treat" throughout the episode.Charles Austin Miller