Only certain station are very pixelated

Channels come in on different frequencies, it’s very easy for something to impede the frequency of some channels and not all. Check your cables are tight and in good repair, remove any extra unnecessary splitters, and possibly have a tech out to troubleshoot further

This answer did not help channels are still pixelating, if your service does not work efficiently why am I still being charged the same rate as I would if my cable worked??

Did you ever get a tech out? Why wait 8 months to reply?