I Married a Mind Reader - S1-E11
Factual error: A nitpicking mistake, but on the set of "I Married a Mind Reader", the front door is a modern steel design. Back in the 60's, front doors were almost always wood (steel doors weren't available until the 1970's or 80's), and the window design would have been larger on a 1960's fan-window wooden door.
Factual error: In the scene where the kidnapper is talking to his brother from prison, the payphone cord is too long for a prison payphone. Prisons use a short cord to prevent inmates from strangling someone.