Robert Moore (no relation to Mary Tyler Moore) who appeared as Ben, Phyllis' brother in the "Her Brother's Keeper" episode, and who also dated Rhoda/Valerie Harper in that episode, would go on to direct Valerie in "Rhoda," the spinoff of M.T.M. Moore was the subject of Rhoda's famous "He's gay!" punchline, the first time it had ever been said on television. Moore didn't mind because he is gay in real life.
Lou Grant:
You know, Mary, you've got spunk.
Mary Richards:
Why, thank you, Mr. Grant.
Lou Grant:
I hate spunk.
The exterior establishing shot of the building where WJM is located, usually zooms closely to a window, but the newsroom has no windows, except Lou Grant's office- which opens onto a brick wall. There are no nearby buildings with brick walls.
In episode 71 the MTM Kitten was replaced by Miss Moore herself, saying "Th-th-th-that's all folks!", a line spoken by Mary Richards during that episode.
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