With that amount of use you should be nearing or a bit over 10,000 hours. You might want to run this Ytube video and report what you see in the 10,000+ hour thread. https://www.avsforum.com/forum/40-oled-technology-flat-panels-general/3031138-report-here-after-you-have-10-000-hours-your-oled-8.htmlI honestly have been running it how it came out of the box and I have used it since the end of 2016 like this. Not a single issue. My only gripe is, I nicked the screen with an HDMI cord, called LG for a replacement, and they wanted $2,000, which is more than what a new one costs, on sale. But that was user error.