It was Bob Newhart's idea to begin using film from season two onward in order to give the show a more realistic look.
Joanna Loudon: And what would you say if you weren't a college graduate?
The town that they live in has a mayor and a council and holds a town meeting. Towns in New England do not have mayors or councils, they are governed by boards of selectmen and town meeting instead.
The opening credits are expanded slightly on a handful of episodes. After Bob Newhart's credit the picture switches to a boat slowly coming to the shore for about five seconds as the theme adds an extra stanza, afterward the credits return to normal for Mary Frann's credit.
In episode #6, "No Tigers at the Circus," Dick is seen watching a TV show, and only the theme song is heard. In the original run, it was the theme from "Mister Ed" (1961), but in reruns it was changed to the theme from "Bob Newhart Show, The" (1972).