An interesting thing about watching them film is how many folks are standing around, and how long they can take to film what ends up being 5 seconds on the show. I imagine it's exhausting for the actors, and everyone else who does much. The infrastructure needed for filming is also amazing, to me, they'll have 5-6 tractor trailers, tents all over, heavy cables running about, and maybe 100 people for each scene doing "something".