The Right Trousers (1995)
British comedian Lenny Henry decided that a live action Wallace and Gromit Christmas special (The Right Trousers) would be a great idea. He also decided to play both Wallace and Gromit himself.
He stayed true to the source material but the end result was really disturbing. It received a backlash from viewers for being creepy (even though it was unintentional) and was never re-broadcast.