The Tale of the Dream Girl - S3-E10
Trivia: It's widely speculated that this episode inspired the movie "The Sixth Sense," although the movie's director, M. Night Shyamalan, claims that he has never watched it.
She Was Killed by Space Junk - S1-E3
Trivia: The Doctor Manhattan - themed sex toy that Laurie receives is called "Excalibur." This is a clue to Doctor Manhattan actually being Cal Abar, i.e. when he returns to his Doctor Manhattan form, he is "ex Cal Abar".
Trivia: Lara Parker, who plays Madelaine the witch in this episode, also played Angelique, the witch in the TV series, "Dark Shadows."
Trivia: Instead of the Royal Air Force, the series has a fictitious British Air Force with largely invented insignia. Ranks are taken from the RAF, but sometimes different rank insignia is worn (e.g. an air vice-marshal wearing air marshal's insignia and a flight lieutenant wearing flying officer's insignia, although another flight lieutenant wears correct insignia).
Episode #7.5 - S7-E5
Trivia: The Matron is called Fletcher. Louise Fletcher played the chief nurse (and a similar character) in "One Flew Over the Cuckoo's Nest."
Trivia: The fuel station features metal miniblinds in several scenes. These did not become available until the early 1940s and would aluminium be diverted from airplane production to blinds?
Trivia: At the beginning of this episode, after the Crypt Keeper causes the mirror to break, he mentions that he just bought seven years of bad luck. This show lasted for seven years.
Trivia: Its teaser trailers are, for the most part, out-take footage that doesn't actually appear in the episodes. For example, in the scene in which ShadowMoon and Mr. Wednesday first meet aboard the airliner, the teaser trailer uses completely different camera shots and different performances from the actors. In the actual episode, the camera shots and performances for the same scene are noticeably different.
Trivia: This show pays many homages to the 1968 film Bullitt which was also set in San Francisco. Firstly officer Rebecca Madsen's car is the exact same make, colour, and model Mustang that Steve McQueen drove in Bullitt. Also the final episode (Tommy Madsen) features a car chase which recreates many shots from the 1968 film. It even includes the green Beetle Volkswagen coming down the hill as seen in the movie.