I watch them too, Bambii. They are very inspiring.
Kath, yes, Losing It is about success stories. It's on at noon on Discovery Health. They tell the story of two people who successfully lost weight using many different programs. I've seen Atkins, WW, GBS, hypnosis, Jennie Craig....all with very good results. The Atkins lady lost 111 lbs in 9 months!
The Weightloss Challenge is Dr. Phil's program, I think.