I, unfortunately, am into Guns, Ham Radio, and I am an I.T. guy (Also an ex-navy Nuclear power ET). That means I drive my wife absolutely NUTS pointing out mistakes on T.V. to the point she often does not want to be around me when watching T.V.
Like stated, to me, it takes away from the entertainment when the script defers too far away from the truth. Movies that "get it right" are way more entertaining to me unless the movie is meant to be pure fantasy, say like Avatar, or something like that.