In a bit part, Rob Reiner makes his first TV acting appearance. He and Burt Ward had previously performed Summer Stock together, though do not share a scene in the episode.
First episode appearance of The Batcopter, which debuted in the 1966 movie.
Guest star Rob Reiner (Delivery Boy) later gained fame as Michael "Meathead" Stivic (husband of Gloria (Sally Struthers) on "All In The Family" (1971). Ironically, Struthers would co-star with Burgess Meredith (The Penguin) on the short lived "Gloria" (1982).