TV channels pixelating
It has been four continuous days where all channels are pixelating. Doesn’t matter what room. I have refreshed, restarted at least 8 times. Have been on phone with technical service. Have tried other HDMI cables. Verified all coax cables are tightly attached. Tech support thought it was one specific channel, TNT. But problems persist while trying to watch Bears game on local channels, Sox playoffs on FS1, local programming on CBS. Main box, wireless box, as well as wired boxes.