I own LG55C7T brought only last year aug 2017 model. had dish HD tv connection. Used to watch football cricket generally and some news some time in stretch, 5-6 hrs late evening/night mainly weekend (probably < 20-30hr week) and I will say it was under watched during this period. In just 14 month, noticed yesterday, light green patched started visible where channel information appear ( when you switch channel, horizontal bottom ) and also to place where dish tv static logo constantly remains. Called LG support, technician visited and said its screen burn panel problem and need to be replaced 80k INR, discussing with LG. Static logo in DTH signal can damage your OLED that for sure and this danger to your OLED TV is nearer than appear ( and if you are a Dish tv customer its on the way as its not transparent always on same place). Dealer is suggesting to buy 4k setup box but that too signal will have logo and same problem will appear. no technical explanation, 2.7L INR for OLED in drain. My old LG LCD HD ran 10 years without any issue. Seems OLED is untested and not a mature technology and LG is fooling customers specially when in INDIA customers right is not protected, LG is marketing without assuring its reliability and LG OLED insurance is costlier than car insurance 40K