The transformation chamber always required someone from outside the chamber to pull the lever, yet Eddie Winslow was able to transform himself without assistance.
No explanation is given to why Steve has a vial of Urkel elixir (which Eddie use to change into his personality) to win on a game show.
Carl says that Laura was five years old when The Wiz was released. The Wiz was released in 1978. So that's not possible.