In an early episode she danced (or something) with bare boobs. Unacceptable on the public airwaves.
She did not "dance" with bare boobs. She entered the comedy club on a night where non-professional comics could get on stage and do their thing.
She had just come from home after her husband told her that he wanted a divorce because he had fallen in love with a (teenage) girl from his work.
She was so upset that she wandered around until she wandered into the comedy club and went onstage and did a rant about what had just happened to her. She also was pointing out that she kept her figure and she was pretty sexy; and, to prove that she took off her top to show how nice her boobs were.
She did not "dance around" or anything. She did make some very funny jokes.
I watched a rerun of that first episode; and, Amazon Prime had cut that piece of her rant out of the episode. So, I'm not sure anyone who would be watching that now, will actually see her bare boobs.
When this show first ran, I read a review of it and that writer said that it was loosely based on the life of Joan Rivers.