Visitors From Beyond the Stars - S1-E18
Revealing mistake: The view of the town seen through the saloon doors is a painted backdrop, as some of the actors cast shadows against it.
Time Tunnel (1966)
1 revealing mistake in Visitors From Beyond the Stars
Starring: James Darren, John Zaremba, Robert Colbert, Whit Bissell
Rendezvous with Yesterday - S1-E1
Character mistake: When Tony talks to captain of Titanic he states he was born in 1938, but in episode 4 "The Day the Sky Fell In" it is December 1941, he should be 3 years old, but as a young child he is about 12 years old.
The Revenge of Robin Hood - S1-E16
Trivia: This episode includes scenes and footage from 1938's "The Adventures of Robin Hood" that starred Errol Flynn.