Least expensive is to get Sat at home and have the xtra receiver in the RV. Next is pay as you go, purchase your own equipment and then you can get $30 cards. Depending on programing the card is good plus or minus a month. Down side is once you activate a card it's running for the next 30 days then runs out. So if you go for a couple weeks or a month then not for a while this works good. If you go for a weekend then not for 3 weeks maybe not. But its better than paying a contract for year round.
My rv is a 2001 model, with 2 tv's, and a cable hookup in the normal spot @ rear , next to the phone hookup, but also has one coax hookup on front passenger fender. Do I need new tvs, wiring, 1 or 2 recievers?