In 'Back to the Future'(1985), Marty says he has two tv's. His uncle says "You must be rich!" & his grandma says he's teasing & no one has two tv's. In 'Back to the Future III' (1990) we see Doc has two tv's, a small one they hooked the camcorder to and a big one 'Howdy Doody' plays on. Doc is rich.