Continuity error: In the season 1 episode "Bess, You is my Daughter Now," Mary says her mother is named Marge, but here in her first guest starring role as her mother, Nanette Fabray's character is named Dottie.
Lou: You were going to suggest that we replace Ted by televising newspaper clippings, weren't you?
Mary: No, Mr. Grant.
Lou: Aw, that's too bad, because it's a great idea.
This episode was filmed on June 16, 1972.