I’ll never forget the ugly green dress episode. The end of it is one of the most memorable things I’ve ever seen on TV.
https://www.youtube.com/watch?v=PpE7ZiBCyd8
What was so memorable?
Interesting fact: Barbara Colby, who played Sherry on that episode and on the episode in which Mary went to jail for not revealing a source, was Ethel Merman’s daughter-in-law.