My name is XXXXX XXXXX I can help you today.
Please tell yor son to first unplug the tv and let sit for ten minutes. This will reboot the tv. Then plug it back in again and turn it on.
Give it a minute to power back up and reboot the computer. Then please tell me if after about 20 mins or so it still turns off randomly for you?
If it does, please just come back here and let me know. If not, and the tv runs as normal, then please remember to rate my performance positively below this chat with ok service or better rating. And if you have more questions or concerns after rating me please feel free to get back to me here at any time and I will help you more for no additional charge.
Thanks and please let me know how you do.