If you already have HD receivers then your done. The oval dish is because they broadcast from 2 different satellites, and as far as antennas go, you can use something as simple as rabbit ears on the TV, or a rooftop tree looking style for the best reception. If you don't have the receivers (HD as opposed to regular digital) yet then thats the cost for maybe 1 of them. Usually Directv doesn't charge for the dish itself. Go to [ www.terk.com ] for the best direction to point your antenna depending on where you live.