I have a Hitachi 43-inch HD-ready TV and a DISH 500. I can't watch HD because, after spending 2,000 dollars for the TV, I can't justify spending another 700 dollars for the DISH 6000 system. Is there just a modulator or tuner out there that will process the over the air broadcast from the local channels through the antenna? I have seen a couple of examples but they cost almost as much as the DISH 6000 system. Is there a cheaper way? My wife likes the PVR function of the DISH500 which is also another drawback.