I called DISH to upgrade to the Harrisburg HD locals. I had quite the pleasant suprise when I called. I have a 622 and 722 with 2 dishes. They said they had to upgrade me to the single dish 1000.4 dish so I could pick up the HD locals. I just had it installed tonight (at no charge!). Interesting note is that the technician had to swap out my two receivers because they did not match a group of serial numbers on his list that were necessary to receive the single dish installation (I installed the new security cards two day ago so I know that was not the reason for the receivers swap out). He exchanged my 622 and 722 for two new 722s - great deal especially at no charge.