My nowtv box (black) flicks and makes a static noise making it unwatchable. I have just got a new broadband provider with better strength as I thought that was what was causing it. I have tried the factory reset but that's made it worse. It's been updated. I have tried other hdmi cables and different slots on the TV. I have no issues with the fire stick in any of them so pretty sure it's not the TV. Any suggestions? Is it worth getting a new box or will it be more of the same?