I have been having pixilation issues that just seem to be random. Had been great for years. Hope you can see my video.
Really looks like a signal issue, maybe your dish alignment has slipped. After years of my dish and signal being as solid as a rock it went south on me a couple of weeks ago. Turned out the mounting board my original dish installer insisted on using had started to rot and the dish was settling. It had been so solid for so long I'd kind of got lazy and hadn't checked my signal in months so no telling how long or when the dish and signal started to slip. All redone and the DirecTV tech and I worked on nailing the signal. I've been with DirecTV since 1999 when I cut TWC back to locals and Internet back in Virginia. When I moved to San Antonio in 2003 I didn't even bother with TWC and use DSL for Internet and DirecTV only. Actually wanted TWC for Internet only back then but they had no interest so they broke two install appointments so they're not welcome around here. This house does have a great OTA antenna in the attic and I use that as a back-up.