I don't have a "beef" with these shows-

It wouldn't be fair to participants if they were ever led to believe that they could return to their old lifestyle, not maintain their diet and exercise and not expect to gain at least some, if not all of the weight back. The fact is not all participants gained the weight back. Those that did not gain the weight back continued their program as if they has never left the shows- that is they continued to watch their diets and exercise.

Same thing happens with Cambridge. Those of us who do not maintain vigilance towards the programs regain our weight. That's sad but true.