I am a newbie to this forum, but need some opinions. I have been a Dish customer for many years. I have a 4 room setup, and I purchased all the receivers (Three 301's and one older model). I have the America 150 package with locals, along with HBO. The older receiver does not work anymore, and I cannot receive any kind of stereo audio signal on my 301's. I recently purchased a new 64 inch RPTV, and want to upgrade to HD. I have an OTA antenna in my attic. I have a cable input, as when I discontinued cable they forgot to turn it off outside. I believe that the cable and SAT are all run through one cable and a diplexer. I have been torn between switching to Direct TV, but figure I may be able to swing something with Dish, since I own the equipment and have been a long time customer. A Dish 921 seems like it would work well, since I have the OTA antenna already in place. What would you do if you were me???