After last update screen blinks out to black and back to video on 2 second cycles. Power cycling by unplugging and plugging back in fixes until next time I watch tv. Performing a master reset allows it to work for a day, maybe a day and a half. Then the problem returns. I have tried different hdmi ports and even bought high-end hdmi cords. None of the current solutions in the forum have worked; I’ve tried it all.