How do you calibrate brightness, contrast, color, etc., for HD inputs? I use VE for the DVD input, but how do I calibrate for the 1080i signal? Should I just use the 480p signal from the DVD player into the input to be used for HD? Are the inputs/output similar enough? I know when I had my TV ISF calibrated, an HD signal generator was used. Several people I know are having HD cable installed, and I want the best method to get them set until a full blown calibration by an ISF person is possible. Thanks.