I read about a lot of 722 failures, but very little about what actually failed. My TV screen is frequently going blue and displaying "Loss of Signal". I changed out the HDMI cable, but it doesn't seem to have gotten any better. I added a fan to the cabinet, which seemed to help for a while, but now I'm back to having failures almost daily. It use to take hours before the first failure, but recently it fails in the first hour. If I hit pause and wait 30-40 seconds, the show will return and in most cases it won't fail again for an hour or so. I use to think it only happened when recording multiple HD and watching another, but lately not even that is true. When the screen goes blue, the audio continues, but that is connected directly from the 722 to the A/V receiver via toslink. Without a portable HDMI TV to bring to the living room, how can I be sure it's the 722 and not the VIZIO TV? I've read about problems with the 722 and HDMI cables and seen suggestions to swith the component cables. I'd rather not. Back to the real question, when your 722 failed, what did it do?