Everyone must sign one hell of a waiver to go on this show. To me just ain't worth your 15mins (and potential $50k). You know if you seriously injure yourself they probably won't show it anyways.
The more interesting show of this type is Ninja Warrior, which takes serious athletic ability, and people obviously devote their entire lives to winning. Hopefully NW will eventually be in HD.
XBOX Live: Wagmman
My Second Life character looks and acts exactly like me except he can fly.