I thought it was quite an enjoyable hour. Considering that it must have been produced on a very modest budget (peanuts compared with SCD) I think they did a decent job.
I found all the participants a bit confusing at first, especially the 10 "pro" dancers, who I didn't know any of, and most of them didn't seem to be introduced or otherwise identified. The uniform black outfits that all the pros were wearing put all the attention on the contestants, which was a good thing.
A couple of the female pros (who I didn't know) looked very nice.
Must mention one male pro (Julien, I think) - seemed extremely narcissistic and really full of himself - might make a suitable partner for Karen H sometime.
None of the contestants seemed massively overweight to me. A couple of the women looked very nice, as they were.
I think Marissa Jaret Winokur (a contestant on the last series of Dancing with the Stars) may have been heavier than most of these women. For anyone who didn't see DWTS, there's a sample of Marissa Winokur on DWTS here:
http://www.youtube.com/watch?v=iNN8YhVNQO0
Back to Diet.. the camerawork throughout much of the dance routines seemed to be focused on the heads and shoulders, so you couldn't see much of the contestants from the waist down. Focusing on the heads and shoulders may have been intentional in some cases, in order to avoid the embarrassment of seing the feet of some people who might not have been moving them.
I think a lot of the dancers seemed very nervous, understandably so. They ought to relax a bit as they get used to appearing.
In the judging - Matthew Cutler finds it very hard not to be ever-so-polite to the contestants. Karen doesn't have that problem. Matthew's comments seemed a bit vapid and weak. Matthew also seems to be a bit slow up top - when Karen made a quick remark about "cool fridge", Matthew's response was "stylish fridge" - he didn't get it.
The "doctor" on he panel didn't seem to have that much to say, with a result that the judges' comments were dominated by Karen - a bit too much opportunity for Karen to dominate the show.
The final elimination was a bit strange - one person was selected as having done the worst dance and one person was selected as having made the least weight loss, and then they had to they choose between them - a very difficult sort of choice.
That's only the first episode - should be interesting to see how the series develops, and as we get to know more about the contestants, and the various pros.