Burning Down the House - S2-E15
Factual error: Eric quotes "I'm not a doctor but I play one on TV." That quote was from a commercial in 1984.
Moon Over Point Place (1) - S2-E26
Factual error: In one scene towards the end of the episode, Hyde is reading MAD Magazine in the Hub when Jackie interrupts him. He says he is in the middle of reading "Smokey and the Band-Aid," MAD's parody of "Smokey and the Bandit." However, the issue he has is June 1976, and the film was not released until May 1977.
Answer: It's Ashton Kutcher's dog.