The announcer to Psychology Today was actor Howard Hesseman.
The fictional TV station that Bob and the group go to for Psychology Today was WTTW, Channel 11. WTTW is a real PBS station in Chicago.
The main theme song to the opening also was modified slightly.
The closing credits' theme has been re-arranged for the second season.
Howard's singling out My Mother the Car as the worst program ever on television is an in-joke on The Bob Newhart Show's co-creator David Davis, who was the director of that fourth episode. Davis actually directed nine episodes of that infamously awful series.