Questions for Jeopardy's Watson

This week, the age-old question of whether machines can ever replace humans was posed repeatedly -- in the form of an answer followed by a question. On "Jeopardy," IBM launched a well-publicized stunt in which their room-sized supercomputer Watson, despite some fumbling, beat two of the game's past champions.

But questions still remain as to future roles for a computer that provides questions for answers. Stills and transcripts from a previously unreleased rehearsal reveal that, even before the show began, both "Jeopardy" and Watson had some questions for each other.