Sister, Sister - Where in the World Is Roger?
This is in the episode where Tia and Tamera get a car. In the beginning you see Roger is sleeping in the back. Fast-forward to the when they're on the dock. Roger should still be inside, yet only the girls get out of the car. Roger would have woken up, and if he was in the car he would have drowned. Yet he was there the next morning! What happened?