Have a look at the link below and head to the first video to see IBM's supercomputer Watson open a can on a few past Jeopardy champions. Well, it was pretty close, but Watson looks like a tough competitor. No doubt I'll be checking those episodes out when they air (in Feb I think?).
http://www.engadget.com/2011/01/13/ibms-watson-supercomputer-destroys-all-humans-in-jeopardy-pract/
http://www.engadget.com/2011/01/13/ibms-watson-supercomputer-destroys-all-humans-in-jeopardy-pract/