My neighbor asked me about Dish. He has 3 HD sets Helives by himself. Says one 722 will; be fine. hook 1 up via HDMI and backfeed theother 2 via Coax. He says he can only watch 1 TV at a time. What do you think the picture quality will be on the TVs hooked up via Coax ? I just told him to splurge and get 2 211s for $7.00 each per month. If he can afford 3 hds he can afford $14.00