New Travel Trailer, help me understand my satellite options

If you don't have sat at home already, then there is no cheap sat solution. Best (IMO) is DishForMyRV, as said. I have the Tailgater carryout (not cheap) and I find that not having to aim the dish does wonders for my blood pressure. Tailgater works very well on 100-ft of coax, which helps you get around trees.