Thank you for the information @Mike wolfe, if the problem returns could you do me a favor and run a picture test on the TV and let us know the results?
I totally feel your pain. I too have the UN82MU8000. The most Ive spent on a TV because they rave they are the BEST. I also came from Vizio which all them have no issues like this or any issues at all. I've only been using my 82" for a few months and I have the same lines that you describe on all inputs. It's very disappointing to see that this seems to be a common issue for such an expensive product. I would like to know though how did they resolve your issue, or did they?
I’m not sure why to do. I have a q7f 55” that I got a year ago and it just has this happen today. By warranty expired. I also bought a q9fn75” about a month ago and have 15 days left with Best Buy to return it. Is the out of warranty tv I have serviceable? Because this is bull if it isn’t.