I am getting a temperature warning on my 50" Hisense Roku TV. As others have stated, removing channels and resetting the device does nothing, so I will not be doing that and the tv is cool to the touch all over and has a fan that blows directly into the TV's vents, so there is NO HEAT AT ALL in or around this TV. This TV used to run 24/7 with zero issue but now overheats after a few hours with no change in location? Has anyone else had the same issue with the same brand?