Yahoo has a slideshow of past winners and I'm a little surprised at how many of them have put the weight back on. In fact, the farther out from the show, the more weight they show in the pics. It really is hard to keep weight off long term! (I know this first hand, after losing 40 lbs with WW, I kept it off for 3+ years and have now regained it all.)
Slide Show Photos - Yahoo! TV