I love those kinds of shows. I haven't seen this one, but I'd probably love it. I remember the old Mr. Rogers episode where they go to the crayola factory and watch crayons being made.
The music borders on 80s porn music, and they walk you through the manufacturing of the most random items you could think of: pantyhose, nails, staples, copy paper. They just finished showing us how safety goggles are made.
Re: Discovery Channel + nerdiness...
Yeah it's a really simple concept, but very entertaining.