Seriously the top of the ridge especially at night will sow you a way out like a distant house light, road with headlights, etc.
As for actual knowledge? Cody seems to have the most overall knowledge and skill for all conditions. However the barefoot stuff is an unnecessary risk. You do not expose yourself to unnecessary risk like that conditioning or no.
It's all staged and the people in all these type shows have a support team. IOW while Jim is wrestling the Python I'll be back at camp having a steak LOL.
“Survivorman” is probably the most sensible and least staged. Bear Grylls’ show got ridiculous; it seemed to be mostly a venue for him to eat outrageous stuff (and sometimes get sick from doing it) and take other unnecessary risks.