On the telephone, Sheldon says he is watching "Star Trek (1966): The Original Series". First of all, that is *not* the name of the show, it is simply "Star Trek". Secondly, no one at that time called it "The Original Series", it was simply called "Star Trek", its official name.
Mary and Sheldon are seen trying to play Clue while the rest of the family watches TV. The rules of Clue state that a minimum of three players are required to play the game.
Brenda becomes all wrapped up in Missy's school life. No mention is made of her own daughter, Bobbi, who would be in the 5th grade at the time, with all of the situations that 5th grade would involve.