This is intriguing.
How is "Watson" going to get the clue?
Is it going to recognize Trebek's voice? - If yes, human competitors may have an advantage.
Or "Watson" will have a camera pointed at the clue board to do a OCR? - What about the video/audio clues. Are they setting some ground rule so that there won't be any audio/video clues?
Or Clues are directly fed into "Watson"? - If yes, "Watson" may have an advantage.
Interesting...can't wait to hear more about this.