I can't get into "reality" TV shows like this. I'm supposed to believe they're actually surviving on their own while surrounded by a camera crew and tons of supplies to go along with them? lol They are probably acting out the LOTF skit for attention or were told to do so to boost ratings. I know someone who used to be a sound guy for a couple of these survivor type shows. He said the "actors" were only in that setting for a short period of time for the cameras. When the cameras stopped rolling, they all went inside a cabin or trailer to hang out and review their script for the next scene. They all had full scripts. Nothing was genuine and very little improvised. They had medical crews, hot meals, internet/phone/entertainment, etc...
Game shows and cooking competitions aren't as bad. There's still a bunch of scripting going on, fake drama introduced and whatnot. The plating at the last second stuff is often staged. Sometimes when it shows them messing up a recipe or dropping something on the floor, it's been scripted in for dramatic effect. There's helping crews off camera that hand them utensils and seasonings they need and whatnot. Food isn't presented to judges right away as hot food. It usually goes in a fridge while everyone takes a break. The judges taste the food as the contestant finishes it to try it hot. When it's presented at the stage for them to "try", it's cold out of the fridge and they pretend to be enjoying it hot. (or not) Their judgement is based on when they tasted it hot off-camera. It's a lot of stuff like that.