Ok this is what i ve got its a vizio gallevia 42 in 1080p , i got a dish 612 box conected via hdmi. Now this is the problem some channels look ok but most of them like unihd , the actual logo of unihd on the cornerof the tv the letters have kind of like a blurry or gost around the unihd letters and it doesnt look as sharp as other sets ive seen , now this is a refurbished tv could that be the issue? Or some settings misadjusted?