This sounds like a quiz show equivalent of those \"Hands on a Hardbody\" contests at car dealerships, where attendees try to win a car by keeping at least one hand on the vehicle for the longest period.
I would presume that contestants would be given rest periods throughout the competition to eat, sleep, shower, etc.
The \"24/7\" concept would be an excuse for NBC to show off their online capabilities, as well as promote the series throughout the Kabletown family of networks. Cue \"Today\" dropping by the set several times throughout the competition.
JD