For little background, I was watching movie marathon of all the Back to the Future Films. The TV had been on for around 6-7 hours at least when everyone noticed the colors shift. I had it pretty well calibrated, but shading suddenly went more purple-ish during the last 30mins of #3. The pictures look somewhat washed out, but certainly still identifiable. After letting the TV cool for awhile, the color look fine for 60s or so, then shift again. You can see some comparison pictures below. Since I am way out of warranty, I am wondering what the likely fix is and/or if people have seen this before. Also, are there any other tests I can do? Thanks in advance.
Also, go to the Samsung website and check out support for your model. There will be an ALERT to click on which describes how they will fix capacitors for free, even though way past warranty. Also, call the Samsung support number for a repair, and plenty of folks have reported they are fixing a few other problems for free.