Started watching re-runs of this show on accident - it just always seemed to be on when I turned the T.V. on while my wife was giving the kids a bath. There is some great writing on this show, and Charlie Sheen's character (him playing himself, as far as I can tell) is classic.
My wife hates this show because it's unrealistic. My 4 year old daughter loves it because we see a lot of animals, and he eats bugs. I like it because, maybe once an episode you might get a useful piece of survival information...and he usually goes to some interesting places.