I am having a 622 installed next week and must make a decision on how I handle TV2. I have an 811 and a 510 receiver, plus a 310 which I will bw swapping for the 622. Since I only have one HD TV set and 2 SD tV sets I wonder why I should use the TV2 to replace the 811 0r the 510. I wonder why I should not just leave the 510 on one set and the 811 on another and not use TV 2 for the second TV, (non HD) I have made this sound complex but it may be simple to the experts in the forum Advice? Suggestions?