Mike, We have DTV. I had DTV set up a 2nd DVR in our home (We have the Genie setup). I then took it and installed it in our MH. When we go to a resort, I call them DTV and they quickly add the address to your profile and voila... You have local service. If you are like us, a few weeks here a month there, etc, it is perfect. If you are a day here, 2 days there, rely on cable for the locals.
The only complaint I have is the realization that trees at the sites are your enemy if they are in the wrong place. They usually are!!! Get your compass out and visually get an idea of where clear sight is before you level and put your sides out. Sometimes it is a matter of a few feet back or forward..
Good luck