Also have 2 DSs and a DH who are hooked on this show. I enjoy it also, but don't make time for it like they do.
Along with the explosives stuff, they especially enjoy the gross stuff. Peeing on the 3rd rail, bacteria on toothbrushes, and what was the thing about flatulence?
I am so thankful for the Discovery Channel. We are tuned to that all the time, rather than much of the other garbage that's out there (they haven't found MTV yet.) I'm a Cash Cab gal myself....