To survive in the wild and make a TV show out of it, you really have to know what you're doing. Tramping around crying, setting forests on fire so search planes can see you just isn't enough. It's something host Bear Grylls knows well, and to fill his time slot he's got to come up with all kinds of tricks.
Like getting naked (a little something for the ladies!) and dipping into an Icelandic stream heated by a natural hot spring. Which gets him a bit more survival experience than he bargained for...