50 Inch Class Crystal UHD CU8000 is not working. I had it connected to my Xbox while I was gaming. But from the bottom right corner a black shadow appeared and then covered the entire screen. It slowly blinks are dark black screen then a lighter screen. I can't use the remote because nothing shows up. I unplugged it and then held the power button to clear out any power left in it. Still nothing. Can I fix this or do I need to just buy another tv?
