TBH and the AGS also benefited from excellent writing keyed to some fine performances. Barney Fife and Granny were two of the greatest TV characters ever, surpassed only by Homer Simpson.
I always thought that PJ was too soft and gentle for a TV comedy. GA, on the other hand, felt like the writers were toking MJ.
As for hitting puberty in the midst of all that fine femininity, what you said.
Those '60s shows were so great for lovely female characters. I wanted to be Billie Jo Bradley's boyfriend so bad. I had huge teen (and pre-teen) crushes on Elizabeth Montgomery (Bewitched), Kathy Garver (Family Affair) and Dorothy Provine (Roaring 20s). Alas, Elizabeth and Dorothy, RIP...:-(