I wasn't aware of this and I'm really glad you mentioned it.
Personally, I'd love to be part of the cast/crew of such a TV show but I have to be honest... I would suck at it, except perhaps as the narrator.
To work as cast in that show, you have to have a talent for building contraptions that work quickly and efficiently. Something Jamie and Adam clearly have and I truly don't. I'm more on the electronics stuff.
That's not to say, however, the 2 guys can't be replaced. I strongly differ with the people who posted comments the show wouldn't be the same without the 2 original crew. Having studied in an engineering school, I have seen lots of young people create astounding machines on a shoestring budget and very tight timelines.
Wealth, like happiness, is never attained directly. It comes as a by-product of providing a useful service. -Harland D. Sanders