Is it as simple as it appears to hook-up Satilite TV for on the go service in the RV? I have both Direct and Dish network at home and office respectively and could transfer either reciever with little difficulty. Is all I do is get a dish that matches the reciever and point it at the satilite and "plug&play" as it were? I have heard several of you refer to national coverage plans and RV plans etc....is all that necessary or am I not getting the point? Please unconfuse me...it hurts.