I feel your pain. Even without all the top end calibration etc. it's frustrating on the other end too when you're just trying to build an "entry-level" machine (price constrained) and you're trying to put as much research into great sweet spot components only to have intermittent pixelation that can't be quelched in the end.
It was all fun in the beginning while there were options available for troubleshooting but I'm now sitting at a dead end waiting for Ceton. I have no clue if I'm on the ignore list or if they're working on it.
Do you ever get pixelation on copy freely channels? I never do, only on copy once shows. I'm convinced the problem is in the iTV4.
Ceton has acceptable tech support until you reach their wit's end. Upon which, you're thrown off a cliff. I've tried providing links to a VERY similarly described problem the TiVo had with pixelation on copy once shows that TiVo was able to fix. I'd just like to know if they read it, it could provide valuable insight, or not I dunno.
My HTPC is 95% there, just the darn intermittent pixelation. So frustrating.
Edit: I forgot to add the saddest part. The pixelation can be fixed by getting a Time Warner rented box...
NCoastTweaker when you mention "macroblocking" are you referring to a line that goes across the screen or does the image break up into blocks (not compression) surrounding motion in the scene? The problem of intermittent pixelation that I'm referring to looks like this (taken from my PC). http://i.imgur.com/F7l6F.jpg
It looks very similar to a low signal strength problem but my signal strength is fine and it doesn't show up on a Scientific Atlanta box. And again, it's only on copy once shows. I probably should be calling it macroblocking, but I didn't want to get it confused with the line problem that luckily I've never experienced.
A problem the TiVo had with all the same symptoms (pixelation on copy once shows and/or SDV is involved) have been described by SCSIRAID on the tivocommunity forums here...
Since all OCUR devices are pretty much built to the same spec I thought this could provide some insight, but I haven't gotten anywhere. Tivo was able to fix it though.
I was thinking about getting Time Warner to bring out an MPEG analyzer to my house like SCSIRAID was able to do, but so far I haven't worked up the muster to deal with Time Warner on that level. Plus, in the end I don't know if it would get me anywhere.Edited by schlidel - 9/9/12 at 2:10pm