I have noticed lately my tv has developed some purple lines on the right side of the screen. I bought this set back in August of 2016 brand new, very suprised to see this going on. I had 2 F6300's prior to this set, sold them to a friend and they are still going strong. I didn't buy an extended warranty on the tv as I have had numourous Samsung sets with no issues years later. This really upsetting when I find out there are no parts available to fix it?