Two summers ago I visited the (delightful) Museum of Television and Radio to see an exhibit celebrating the Cartoon Network (Samurai Jack...mmm). One of the museum's great features is a gigungous broadcast archive. You can browse their database and reserve a show, then go to a console room and watch your selection at a monitor with headphones. I think I chose an old Beatles appearance and a never-aired pilot for a Jack Black/Ben Stiller sitcom called "Heat Vision and Jack".

waxy.org recently posted the pilot as part of their bandwidth blowout. Download the torrent and you'll be on your way to seeing... Jack Black as the smartest man in the world, Owen Wilson as his talking motorcycle (a la Knight Rider), and Ben Stiller as strip club DJ (and of course Melody from Hey Dude will be making an appearance). Also- haven't watched it myself, but also starring Jack Black. Computer Man.