Jeopardy! is an American television game show created by Merv Griffin. The show features a quiz competition in which contestants are presented with general knowledge clues in the form of answers, and must phrase their responses in the form of questions. Wikipedia
and the computer Watson by IBM won against the champions.
Watch what Ken Jennings has to say about losing to the machine:
BTW back then the computer looked like this
...nowadays it fits in a pizza box.
This archive has all full episodes: