Anissa Jones final appearance on TV or Films.
Larry Hovis returned after leaving after the first season. Richard Dawson becomes a regular after making one guest appearance in the first season.
April Tatro is the contortionist lying on the piano like a pretzel reading a book & later hiding in a suitcase during one of Dan & Dick's dialogues
The clapperboard visible between takes of the gag featuring Martin Milner and Kent McCord playing their characters from Adam-12 (1968) reveals it to have been shot on August 18, 1971 for a proposed October 4th, 1971 air date.