Deliberate mistake: In the very first episode, the kids are fighting and arguing all throughout the house. Claire then asks Cliff, "Why did we have 4 kids?", referring to Denise, Theo, Rudy, and Vanessa. In all of the following episodes, they actually have 5 kids. I guess they decided to add Sandra (the oldest Huxtable) later down the road.
Continuity mistake: In this episode, Rudy is riding her bike around the house which is right on the corner of a block. Since when is their house on the corner?
Cliff: Clair, we don't even know if the joint is Theo's and you already got the boy going to Turkey.
Trivia: This is the first appearance of Sondra, the eldest of the five Huxtable children. Sabrina LeBeauf, who plays Sondra, beat out future pop star Whitney Houston for the role.
Autumn Gifts - S4-E7
Question: When Cliff is watching TV, the sound of voices singing "Open the door and let me in." come from the television. What song is this?
Chosen answer: That is the song "Open the Door Richard."