My friend (I'm everyone's friggen tech, ugh) in Houston, on Comcast, just called and said her video was fine this morning before work but when she came home tonight and turned on the TV, it just had a black screen and said "mode not supported". I had her reboot the TiVo, turn the TV off, and also had her unplug the HDMI cable on both ends and turn on/replug everything in and still the same message. Has anyone encountered this and have a solution? The DVD player works with the same HDMI cable when plugged into the same port on the TV. The TV get video from the TiVo when plugged in using component. Is this brand new TiVo HD's HDMI port dead already?