It's weird - I have the same tuner card (HVR-1600) and my Panasonic display picks up dozens of channels but when I plug the cable into the ATSC/QAM input on the Hauppauge card it won't pick up anything. Nothing gets listed in either MP or WinTV, yet for a few channels a good signal is displayed and (in WinTV) the "Locked" box is checked, but nothing ever is able to be tuned. Very sad about this.
United States of America