HD Dish Network
That's a really good question :-)
I've never even tried the dish system, since my kids watch the TV while traveling.
Our dealer (Boise, Airstream Northwest) told us we had only one HD in-motion option, and that's Dish Network. We wanted Direct TV since we use this system (Direct) at our home.
Perhaps I should go over to the airport today, open the hangar door, pull the van out and fire it up?
Black/Black Interstate lounge - 9 Passenger (6x6)