The name of Monte Markham's character was changed from Barney Miller to Barney Hiller to avoid confusion with the ABC sitcom Barney Miller (1975).
Even though Martin E Brooks had assumed the role of Dr Rudy Wells at the beginning of Season 3, Alan Oppenheimer returned to play Wells one final time. There were several flashbacks from The Seven Million Dollar Man (1974), in which Oppenheimer appeared. Rather than re-shoot the scenes using Brooks, it was more cost effective to have Oppenheimer return.