Hi, I have three receivers..an 811 for HD, a 522 for dvr to our main large screen tv and a bedroom tv, and a 301 for a basement tv. If i ordered the 622, I could do away with both the 811 and 522, correct? How easy is it to hook up the 622 to our current system? Should I have an installer do it or is it just a matter of switching some wires? Will I need a different dish? Sorry if my questions are basic, but so am I!
thanks
:

