A very informative site, especially for someone new to HDTV. Presently have 42 in Sharp Hd with 981 OPPO DVD player. Use Dish with 622 HD DVR for downstairs and different model upstairs, not HD there. Have Sherwood HDMI 7502 A/V receiver and Infinity TSS1000 5.1 speakers.. Still not satisfied with calibration, but I wll be soon. All help accepted or given.: