I have a Samsung 46 inch tv. Model code: UN46D6900. I can get you serial number later. Just now, while watching the news, on the right side edge of the screen, very center turned white. Started to get real hot. I turned off the, but now there is a definite line through the middle of the screen. The t.v. is about 5 yrs old. No other issues. Any ideas what causes this?
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