For the last half hour I've had bad pixellation and audio break-up on MSNBC-HD. I am not seeing the same thing on CNN-HD. Happens every 20 sec or so, sometimes more often. Anyone else experiencing this? I've tried 2 different DVRs, it's happening on both. I don't think it's a signal problem, but don't have time to check, as we are doing a major overhaul of the basement. I've been using MSNBC-HD to take my mind off this miserable task.