Marty McFly: [watching a Honeymooners episode in 1955] Hey, hey, Ive seen this one. Ive seen this one. This is a classic. This is, uh, where Ralph dresses up as a man from space.Milton Baines: What do you mean, youve seen this? Its brand new.Marty McFly: Yeah, well, I saw it on a[realizing]Marty McFly: ... rerun.Milton Baines: Whats a rerun?Marty McFly: Youll find out.