Liberty Williams later co-starred with Ed Asner in the movie "Gus".
Continuity Error: In the season 2 episode, "A Girl's Best Mother Is Not Her Friend", Ida Morgenstern mentions that Rhoda has a sister named Brenda and a brother named Arnold, but in this episode Rhoda's sister is named Debbie. Ironically, in the spinoff series Rhoda, her sister is named Brenda.
Ida: Has anyone noticed how thin Rhoda is getting? Hey, Martin?
Martin: Yeah! But then she was always thin to me, even when she was fat!
This episode was filmed on August 10, 1973.