I was gonna post a spoiler warning, but frankly a spoiler warning would just let you guess what happened anyways.

It's byebye Ken Jennings, finally. He was beaten tonight on Jeopardy. It will be interesting to see what we see of him after this. Will he use his celebrety to break into some form of entertainment job, or will he go back to his job as a computer software dude? Somehow I think the latter is far more likely. Of course he will be back for their Tornament of Champions sooner or later.