Occasionally my TV spends the whole evening blinking on and off - both video and audio. It is impossible to watch TV when that happens.
Sounds like poor signal, try starting here How to troubleshoot poor picture quality / pixelation
It might also be the connection between the digital box and the TV. I've heard of this happening if the HDMI cable between the two isn't sitting properly. Try reconnecting the cable on both ends and also look at reconnecting that coaxial cable too.
Yeah I mis-read that, that does sound more like a HDMI hand-shake issue
Try component cables for a week, see if it improves it.
Just checking in, were you able to resolve your issues with the channels breaking up with either Kevin's or Lance's suggestions?
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