First episode in which the phrase "Same bat-time, same bat-channel" is both seen and heard during the closing narration.
This episode contains the first reference to Catwoman in the TV series.
This is one of a very few episodes where there is no batfight.
The episode was based on a 1965 Batman story appearing in Detective Comics issue 346. The original comic book story featured not Zelda, but a male magician/escape artist named Carnado. The change was made because producer William Dozier told screenwriter Lorenzo Semple Jr. to "work in dames whenever possible".
This marks the first time during the show's run that Batman faces a female criminal.