Had KVH on previous boat, this one is Intellian. I can’t say I notice a difference, but we are SD only, not HD.
Regarding DTV, not happy with them in general. I spent a lot of painful time on the phone speaking to technical service in the Philippines last year. Just last night I added HBO. It shows up at home, but not on the boat. For the money they charge, their customer service sucks.
I am thinking of switching to Dish.
*Is it fairly easy to dump DTV, and make the switch?
*If you also have a land based account does Dish have the Low rate, $5/mo deal for a second receiver for your boat like DTV has?