When George and Helen are dancing together you can hear someone from the audience say at the 11:33 mark "Get down George"
Debbie Allen appears in an uncredited role as a disco dancer. She dances with George Jefferson Ina couple of scenes.
If you watch carefully, about 2 minutes before the end of the episode, as George and Weezy are sitting on the couch, he shoves her arm and her earring drops into her lap. They then stand up to talk, she has no earring, then she suddenly has one again.
Marla Gibbs (Florence Johnston) does not appear in this episode. In the first act, Louise explains that Florence is out of town visiting her aunt for a few days.