Trivia: A prominent first-season character, Burke Devlin was originally portrayed by actor Mitchell Ryan. However, Ryan was abruptly fired from the show in 1967 due to his alcoholism. Actor Anthony George assumed the remainder of the role until Burke Devlin's death (in a plane crash) in 1968.
The Bring 'Em Back Alive Raid - S1-E26
Trivia: The scene of a German guard in a tower scanning with a spotlight from "Hogan's Heroes" is used to spotlight Moffitt, Hitch, and Tully during their escape.
The Psychic - S1-E28
Trivia: Watch the drive-in theater marquis when Briggs drives in to pick up his assignment. It reads "Geller and Solow / Spend the Money" - an in-joke reference to producer Bruce Geller and Desilu executive Herb Solow.