Some things to consider...I have Dish at home. For an additional $7.00 a month I have a 2nd receiver that I can use in my RV whenever I want. It gets the same channels that I have at home. With Dish I can get HD through my Tailgater on one channel. Tailgaters are automatic and find the sats without have to aim them.The new Tailgaters can receive 2 channels but then you will need to pay for 2 receivers as well, if that's what you want. My Tailgater is a portable unit. The new ones can be either mounted or used as a portable. Having a portable unit works for me as we travel around and there are often trees in the way. A rooftop unit is more secure and all you need to do is turn it on...I guess it would be best to have both..Now Direct TV...somebody else will have to tell you about that..
B.O.