man vs. wild is just a terrible show:
http://www.collegehumor.com/video:1771093
I am sure the guy is a pretty hardcore dude because he was in the special forces and climbed mt. everest and blah blah blah, but that doesn't excuse him from the fact that he makes a shitty show designed to deceive people.
Survivorman is a fucking legit show... he actually is out there alone (at least I haven't seen any evidence to the contrary) and he actually has to find food and shelter and water. The reason he doesn't do flashy shit like the other guy is because if you were actually trying to survive and didn't have medics around in case you fuck up, it's a bad idea to act like a fucking clown and jump off cliffs and just generally do stupid shit.