What are the best As Seen On TV Fitness Products

I am a sucker to late night informercials and time to time I do purchase some items from commercials or beauty products from the shopping channel. I wanted to start a dicussion on the best fitness products you have bought that were labelled as Seen on TV. When I bought the Total Flex Gym on impulse I didn't know that I would be using the gym system as much as I did. I was able to work out my entire body with the total flex. Did anyone else purchase fitness products from informercials they feel actually lived up to their hype??