Re: 70" SXRD with a story - Need some help...
That set should have come with a replacement bulb, but buying a demo you might not have gotten that. Moose and I both use that same set, nice unit. Try replacing the bulb and after ~100-200 hours burn in try re-calibrating the set, the bulb might have ben your problem, if not, get an ISF certified guy to do a professional calibration for you, DVE is a good tool to get it close, but nothing beats a good pro calibration.
Ken Taraszka, MD