I've only seen one episode of this show, but I have to say something about it because I found this show annoying.
The people presented on this show are certainly frugal and some of them should probably loosen the old purse strings a bit. Sometimes the drive to save money can become a compulsion and it can have a negative effect on relationships.
But at the same time, the overall message of this show seems to be: "Spend money. Buy stuff new. Don't reuse things or use found objects. Used and discarded things are icky." I think that is bullshit. People who have the discipline to be really frugal and resourceful are great. They're not just consuming and shitting like everyone else. The world would probably be a better place if more people were cheap like these people.