Trivia: Originally, Batman villain Two-Face was going to appear in this show and was going to be portrayed by Clint Eastwood. Two-Face's backstory wouldn't have him as an attorney who had acid thrown in his face but instead have him as a news anchor who would have a stage light exploding resulting in his injuries and his transformation into a criminal.
Trivia: The 1966 T.V. Batmobile was created from a decade-old "concept show car" designed and built in 1955 by Ford's Lincoln Division. It was called the Lincoln Futura, and was originally a pearlescent pale green. After several years on the car show rounds (and an appearance in one movie, repainted red), it was sold for $1 to George Barris who stored it outdoors for 6 years. When FOX called looking for Barris to build a car for the show, they gave him 3 weeks, so he grabbed this already-weird looking car he had out back, sketched a few changes and passed the physical work to Bill Cushenberry. It was finished on time and the rest is history.
Trivia: The guest cameo in this episode is by Ted "Lurch" Cassidy, who appears at the window as Batman and Robin climb up the side of the building. Batman advises him to go back to playing his harpsichord - which has been regaling us with the theme from The Addams Family since the scene began.
Trivia: Cassandra springs all the arch criminals from prison. We see Joker, Riddler, Penguin, Egghead, Catwoman and King Tut and hear them laughing (dubs of the original actors' voices). But a close look reveals them all to be doubles. Apparently the budget didn't cover paying Cesar Romero & co. to appear in such a short scene. (00:15:30)
Trivia: Celebrity cameos became a running gag on Batman, with the star usually sticking his or her head out the window as Batman and Robin climbed the building via Bat Rope. Among the many famous faces were Jerry Lewis, Phyllis Diller, the Green Hornet & Kato, Milton Berle, Sammy Davis Jr., Werner "Col. Klink" Klemperer, Ted "Lurch" Cassidy, Steve Allen, Don Ho, Jerry "The Beaver" Mathers, Art Linkletter, Alan "The Skipper" Hale, Edward G. Robinson and George Raft.
Trivia: In the Batman opening theme music, the horns are out of sync with the animation: the horns play two notes over the "Starring Adam West"/Batman head shot instead of during the following animated shots of "POW" "BIF" and "BAM" "SOCK" "BLAP." This also occurs in Season 1, Episode 2 "Smack in the Middle" This is corrected by the third episode "Fine Feathered Finks" and is corrected to three notes.