There in some kind of contract dispute with AMC so if your a dish customer you could lose amc. I have got dish myself and would hate to lose that channel.
Dish is good about dropping channels out of the blue. Then, when you call to complain they just tell you it was probably just available because of a free preview. For like a year, but whatever.
It cost me several Braves games when Dish was negotiating with Peachtree earlier this year. I'm about to just give up and go with Roku/Netflix/sports bars.