When Carol comes in after Mike explains circumstantial evidence to Bobby and Cindy she claims to have searched the whole house and there was no doll or kazoo but the Kazoo only went missing a few minutes ago.
Blooper: Cindy mixes up the lyrics to Rockabye Baby. Instead of "down will come baby, cradle and all", she says "down will come cradle, baby and all."
There were two Kitty Karry-All dolls used on the set. Today, one resides with Susan Olsen, the other with Eve Plumb.
(Mike, explaining circumstancial evidence)
Mike: No, circumstancial. it means things look different that they really are.
Cindy: You mean like when a lady puts on false eyelashes?
In this episode, it is revealed that Carol lost a doll when she was a girl and cried for a week.
In this episode, it is revealed Mike's seven iron is his "lucky iron" because he scored a hole in one with it.