On an earlier episode of Jeopardy! this week, a contestant who turned out to become the carryover champion gave the question "Who is Red Button?" and was ruled correct. Coming out of the break, Alex informs everyone that the judges were at work checking the audio, and the result was a $4,000 delta.
1) Is there someone (or several people) whose job consists solely of checking the audio transcription to make sure that syllables aren't left out or added?
1a) To what degree is a contestant allowed to challenge the response of his or her opponents? Could I pull aside someone during the break and say "I don't think Mary's answer was right, could someone check?"
The other question pertains to the reaction of the contestants, particularly Robin, who through conservative wagering won the title and defended as well. In both instances, she was more excited than anyone I've ever seen by the prospect of winning, even if it was a few thousand dollars. Are contestants coached to give us a small smile when they win? I thought it was refereshing, and wouldn't mind something a little more expressive, especially after a huge payday.