Had a 75" Samsung 1080p (2/2014) from Costco that a couple of strips of LEDs went out after about 4 years. I had the extended warranty with a year left. They sent me a new one but wouldn't let me upgrade. So the new one has been running for about 3 years with no problems.
I also have a 65" Samsung 4K curved screen (2/2015) from Costco that doesn't get as much use, but still doing OK. Every once in a while I have to unplug it for a few minutes to reboot it when it glitches and the remote doesn't work.
I also have a 65" Samsung 4K curved screen (2/2015) from Costco that doesn't get as much use, but still doing OK. Every once in a while I have to unplug it for a few minutes to reboot it when it glitches and the remote doesn't work.