I love the randomness of the Donkey Mask.
This is not a particular episode, but the whole running theme of the blending of the families, and the boys/girls behaving as if they are truly blood related and very little mention of their real mother/father.
I could understand with Bobby/Cindy because they were so young, but the older kids to just effortlessly fall into the one happy family routine just does not seem realistic.
Mike hears Greg rehearsing his "Clowns Never Laughed" song and comments to Carol that Greg has some talent, and Carol replies, "Well, he gets it from my side of the family." Um, say what? Greg is not your biological son Carol, you moron.
My all time worst is the BeBe Gallini episode in season 1. It seems so un Brady like with Mike goo gooing over BeBe.
Wow, I did not know that she also played Violet in Willy Wonka. That is cool!
Also the early episode when Marcia got braces, Mike asked Carol what happened at the dentist and she replied that "they put braces on her".