Hmm... I don't have Discovery Channel. I don't watch a lot of TV. It's evil.
Fight Quest series seems to be worth watching though. Krav Maga's fun to do, I'd see its episode. Bad luck. There's a video on youtube, but it's incomplete.
I almost went to work for Discovery Channel a few years ago. Their office was in Silver Spring, MD. That killed the deal. I didn't want to work in that city.