I have called about this twice and both times I was told that it is not the box. Well, we checked the HDMI cable as suggested but it only connects the TV to our ROKU device. And when this happens - the light on the TV remains on to show that the power is there but the picture goes out. The TV is not that old so I don't think I need to buy a new TV. The box in the bedroom is fine - so far. What is going on? Oh, and we checked the battery back up in the garage and no problem there either.
Have you tried swapping boxes to see if problem follows?
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