May 17, 2012
Premieres: Sunday, May 20 at 10 p.m. ET on G4; Monday, May 21 at 9 p.m. ET on NBC
Why we're watching: Because it's kind of addictive. We've lost entire afternoons more than once to watching the Japanese version of the show, in which competitors take on a diabolically tough obstacle course, and we're curious to see how the American version plays in primetime on a broadcast network.
-- Rick Porter, Zap2it