This is Nancy Walker's first appearance as Mrs. Morgenstern. She would later reprise the role on the spinoff Rhoda.
Mary: What about your father? Does he make you crazy too?
Rhoda: No. I was five years old before I knew my father could talk. Do you know the first thing he said? 'Listen to your mother.'
Ida: I never eat, I just nibble.
Mary: Well, if you're still hungry, there's half a chicken in the refrigerator.
Ida: Not anymore--that's what I nibbled.
This episode was filmed on August 28, 1970.
This episode won the 1971 Emmy for Best Writing in a Comedy Series.
Episode Title: Support Your Local Mother
This is an allusion to the 1969 film, Support Your Local Sheriff!, starring James Garner.