19. '21 Jump Street'
Unconvincingly old-looking undercover cops infiltrate a high-school hotbed of crime — let's face it, you know this show revolved a famously dopey idea. But it was flashy, and in the early Nineties that's what Fox was known for. It also made Johnny Depp a star and formed the basis of the funny-on-purpose movie starring Channing Tatum and Jonah Hill years later.