Visible crew/equipment: After Carol and Don go into Bob's office, the shadow of the boom mic is visible on the wall behind Bob.
The Bob Newhart Show (1972)
1 mistake in Life Is a Hamburger - chronological order
Starring: Bob Newhart, Suzanne Pleshette, Bill Daily, Peter Bonerz, Marcia Wallace
Genres: Comedy
Howard Borden: I was, uh, just decorating my Christmas tree and I was wondering, is there a trick to stringing cranberry sauce?
Trivia: While Bob Newhart is a father himself, he was adamant about Bob Hartley not having any children. When the writers told him they wanted to introduce a child in season six, he told them the script was good, and then asked them who was going to play Bob.