I watched one episode of that show and thought these people are stupid. I can see wanting to be prepared, but if you are going to build a "secret" bunker and stock it with food, guns, medicine... don't go on national television and tell the whole world about it. Not much of a secret anymore is it?
That same episode, the guy was teaching his kids how to shoot, the gun missfired and he ended up with a cut on his head. They called the ems. I figured it would be a good time to teach some first aid as well since there won't be any ems in the end times.
I suppose its worth watching for entertainment purposes, but I usually have other things to do.