UPDATE..... Received the new (refurb) TiVo yesterday. Connected it up, forced updates, called Comcast to give them new Host ID, etc. They initially had a problem getting the computer to accept the new information, but eventually it went through after 15 minutes. As of 12 midnight, there has been no pixelation at all. The RS corrected and uncorrected on both tuners are 0. So far, everything seems to be fine. I'll report back on Saturday to let you all know if things are still the same.