I upgraded to 622 and had my install today. I asked the tech if I needed the Dish 1000 and he said no. I have a dual dish setup mounted on my roof. He further explained that the dual dish setup (with DISH 500) is better than the single DISH 1000 setup. He said they get calls from DISH 1000 owners complaining of weak signals where HD is concerned. Anybody else heard about this? It could appy to my area only on the West Coast.