Since I was the first person to post this, and we've since seen this fix nearly everyone who has tried it, I'd like to recommend we sticky this? Problem: Pixellation with FIOS TV, usually on a fixed set of channels at a time (often one or two frequencies), but the channel "block" can also sometimes move after a while. Why: Since FIOS TV goes from fiber to coax right at your house, there is virtually no signal loss from the source. This means you can have a signal as hot as 10-15db. While this is "within specifications", it appears that it's too hot for the Tivo (more likely, there are other factors that trigger this issue as well, but it's all related to being such a strong, hot signal). Symptoms: Other than the obvious pixellation, the most notable objective symptoms are in the Diagnostics screen. Most notably, the "RS Uncorrected" count will skyrocket when on a bad channel. Sometimes it will start at 0 and stay there for a few minutes, but once it gets hit, it just shoots through the roof (like 100's of thousands). RS Corrected will also count up, but that's not really an issue by itself. If you change channels (off the frequency) and then change back, it might stick at 0 for a few minutes, then it will skyrocket again. Sometimes, it's time of day related, where it will be fine at noon, but at 4pm it's skyrocketing again. Often you won't see any problem on the cable box, cable DVR, or TV w/cable card, even at the same time on the same channel. Potential fix: It seems that the Tivo tuners are more sensitive than the cable box tuners and even TV tuners with cable cards. While SNR by itself, technically, isn't a fix, it's the best indicator for a fix. On the diagnostics screen, you want to look at the SNR number (not the cable card ones, the tuner ones). Usually this will be in the high 30's. For FIOS TV and Tivo HD/S3, the "magic SNR number" appears to be 31. So you want to attenuate your signal down so that the SNR is 31. Even at 32/33, the pixellation will continue. While you will see your signal strength drop, as long as it stays above ~45, you should be fine. Where to buy: You can buy in-line attentuators from a number of places, just do a google search. They are about $2/each, or less in bulk (10 or more). I suggest you get a mixed bag, like a few each of 10db, 6db, and 3db to give you some flexibility in how much you attenuate the signal at each Tivo. Installation: Just plug in line, in the coax (they screw in to the coax end). You can do this right before the Tivo (best for testing this fix), or you can do it at the source, and then tweak a little bit at each Tivo (install one more if needed, since cable lengths can cause variable attenuation). Non-FIOS problems: While this might work for people without FIOS, it's less likely since this is due to too strong a signal. Most pixellation (IMO) other than this are due to any number of factors, including too weak a signal, dirty hubs between you and the CO, and a bad source signal. That's it. This has fixed a dozen or so people since I've posted it and been tracking it, so I think we can officially say this is a fix for at least a good number of people who have tried it.