Friend of the show Dann mentioned on our Facebook group that the short-lived 1980-1981 sitcom I'm a Big Girl Now also included Sheree North and Marty Short. Well, one of them makes the cut in this TV Guide Fall preview close-up:
In the absence of actual full episodes to watch, I can only conclude that the best thing about this show is that it gave Ernie Anderson a reason to say 'I'm a big girl now!" The pro he is, Anderson emphasizes the word big each time he recites the title.
Here's another promo, this one for an episode premiere 40 years ago this Saturday: