Pixilating

So we have been having issues with pixilation on several channels for quite some time, but it's getting worse and is on nearly all channels. The unplugging reboot didn't help, and when I called, they said my box had two errors, which were allegedly fixed remotely. It seemed in the early part of the day, it was fixed, but now that prime time is starting, the pixilation is awful. Anyone else having this issue? I'm not paying a service fee for them to come fix this. I pay plenty already to watch these pixilated shows.