I absolutely agree that SD programming looks MUCH better on an analog TV. I've got 4 HD TVs and SD looks crummy on all of 'em to me--like you're watching underwater unless you're way back.
Since it's only the wife and I at home we have HD at all 4 HD TVs from 2 receivers, a 622 & 722 by having one TV hooked up via component and the other via HDMI or in another case both via HDMI by using a powered HDMI splitter. TV2 is still hooked up to the 2nd TVs via coax so if we have guests separate tuners are still available if they wanted to watch something different in glorious SD, LOL. JMHO
Ed