Advertisements Hi folks, Live in West U and have an original Series 3 HD. When i first purchased the unit (the week it came out), i had immediate pixelation issues. A few weeks later it just dissappeared. Than this summer it came back with a vengence. The most problematic channels are 312, 294 and 225. I can watch an entire sports show on 311, 309 etc and have very few issues with pixelation but on the channels i specifically mention it is terrible. I have had comcast at my home 5 times and now they won't come over without charging an additional fee. They've run cable from the pole directly to the tivo box, i've purchased two other Tivo S3 (both have been returned since) and still have this pixelation issue. I've been reading all the forums and it appears i'm not alone but what i find interesting is that somone else in this forum started to experience the pixelation the same time i did, earlier this summer. Was there a Tivo update? Was this when comcast took over TWX? The comcast folks have been nice and have redone our cabling, added amplifiers, run additional lines and more. They've done quite a bit to support hardware that is not theres but nontheless it is still annoying. So in summary i've done just about everything imaginable to figure out this pixelation issue with no resolve. Any additional suggestions would be terrific. also , what is the different between S-cards and M-cards?