i have a vip622 as my main hd receiver. it also feeds a SD crt tv in my bedroom. i want to upgrade the bedroom tv and go hd, but it appears the 622 will only feed out an sd signal. a friend of mine has offered to give me an extra 622hd receiver he's not using. is it as simple as splitting the signal to both 622s and hooking up a new hd tv in the bedroom, or do i have to contact dish and go through a process with them to start getting hd in my bedroom? thanks in advance for any help.