Intermittent TV Screen Blanking During Commercials

Anyone experiencing intermittent screen blanking during commercials? This only happens when the tv program cuts to a commercial, or when one commercials cuts to another, or during scene cuts during a commercial. The blanking is very short term, almost like a flicker.

I have a Tablo 4th Gen; connected with Ethernet cable to my Router/Gateway; am picking up 140 stations.

What device are you watching your Roku on?