Jackass
MTV's notorious stunt-and-prank show, in which a crew of grown men hurt themselves for your entertainment. Premiering on October 1, 2000, it strung together shopping-cart crashes, ill-advised dares, and gross-out gags performed by Johnny Knoxville, Bam Margera, Steve-O, and the rest of the gang. Wrapped in stern on-screen warnings not to try any of it at home, it was appointment viewing for a generation of teenagers — and the launchpad for a movie franchise that's still going.