Police Squad! In Color
Character profiles and episode information.

Epguides.com: Police Squad!
Lists titles and airdates for episodes. Includes information on the related theatrical films.

The Files of Police Squad!
Cast information, episode summaries, and quotes.

Frank Drebin: My Hero
Dialogue snippets from the main characters, as well as information on the show's format.

Police Squad! In Color!
A-Z encyclopedia of the series. Includes episode information and pictures.