I was just in Vegas and saw the previews of that show (our dinky stations in Canada don't show the same programs). It looked cool.

It never ceases to amaze me how people remain inactive and let themselves get so out of shape. My boyfriend is naturally athletic, yet he never exercises. I always feel so sluggish if I don't swim, jog or ride my bike. Anything to keep moving, actually.

I'd love to try a challenge like that. They always seem easy until you try it.