Mitsubishi TV 82'' screen turns black and flashes the input in the upper left corner when changing cable channels. HDMI 1.4a connection from Cox Cable box into a Denon 3313 CI and then an HDMI 1.4a to the TV The TV acts as if it was changing the input on every channel change. Duration is approximately 5 seconds plus the time the it take for the cable box to do its digital change.
What the heck is causing this? How do I fix it?