Gimme a Break! (1981) : 6x25

When Grandpa comes to get the boys' pajamas, since they are sleeping in his apartment because Addy is sick in bed, he tells Nell that her mother has a date. Nell wonders why her mother would have a date, and when her mother shows up, she meets her date, Ernie, a man from her past. It turns out that he was a jazz musician that knew her mother before she married Nell's father. When they were young, he took her to a dance contest, and asked her to go on the road with him, but she refused. Nell can't believe that this is true. In the end, as Ernie waits outside for Maybelle, Nell asks her mother if the two of them ever had sex, and Mama Maybelle tells her that Nell should know the answer to that question, and tells her she has a lot of growing up to do, and that she must realize that her mother is a woman, just like herself.