Currently I have three standard Dish recievers. One is a PVR. With St. Louis Hd locals now available I called to upgrade to HD. Wanted two HD and two sd. (one hd would be 622) Dish says the 622 counts as two so I have to turn in two old recievers to get the 622 and I can only have one HD. I would have to run cable from 622 to spare bedroom. She said I could buy an hd reciever for $250 and have it installed. Am I missing something. Didn't really want to buy the hd reciever and pay to have it installed. Does the 622 require two lines from the sat dish.