From 1949 to 1952, Charles Ruggles (Charlie Wiggens) starred in the family-oriented sitcom The Ruggles (1949). The shows were broadcast live and it was one of the first to originate from Hollywood rather than New York City. Only a few number of kinescopes episodes survive at the UCLA Film and Television Archive.
When Grandpa and Herman look at a map to find a small town where Herman can take his driving test, they find Groverville, which is where they end up going. Two other towns named on the map are Bertram and Wisterville.
Irwin Charone (Mr. Howell) had appeared previously on Herman's Rival (1964) as Lily's werewolf brother. He was also cast 5 times on Bewitched (1964), four of them as one of Darrin's clients.