He's got nothing on Bear Grylls.

According to this link http://www.newsweek.com/2011/02/13/is-alex-trebek-in-jeopardy.html Alex only films 2x a week, several shows a day. I reckon he probably doesn't want to bend over backwards for IBM and their little robot :3

+1 to this! I'm a CS undergrad and my mind is blown when I realize how dumb our machines are sometimes (and doubly blown when someone at Google or Microsoft talks about how they've managed to wrangle that stupid technology in incredibly clever ways to do something pretty neat). Watson is an impressive technological feat because it's the first major step towards computer understanding of English semantics. Which is crazy, because English has no formal semantic definition at all!