Wanted to post an answer to a problem I was having with a Toshiba 56H80, rolling color bands (red and green) from bottom to top when using DVD. This problem was posted here originally about a month ago with several helpful responses from members. No fixes, but thanks for the info. Well, turns out that the problem was not in the TV or DVD, but the cable from ATT broadband. Grounding problem at the entry point caused interference when using the DVD. After fixing this problem the system is great, now time for the ISF calibration. Anyone to recommend for this cal? In northern California, just north of San Francisco. By the way, just wanted to let everyone know that Toshiba was responsive with warranty coverage and not so local service call. Thanks.