never seen it. is it real? i know some shows seem fake like the towing repo shows.
Is it a real show really on TV? Yes. Does it feature real people? Yes.
Like almost all 'reality' shows, does it exaggerate and present people in the most extreme way possible? Yes.
I have spoken and/or am familiar with more than one person that has been featured on the show. The producers make the people say 'I'm preparing for....(insert doomsday event here)!' While a few people that have been featured needed little help in looking like fools, many of them are far more reasonable and balanced people than they were portrayed on the show through editing and coached lines and scenarios acted out.
It does seem there is a weird preparedness meme circulating through the congregations. From the platform it has been encouraged to have a bug out bag and accompanying bug out plan complete with routes away from the city mapped out, leaving written information at home as to where you went, giving this info to your group elder, having a minimum of 3 days of food/water in the house, and so on.