Just to add to the discussion of these failing, my 43" developed a worsening "shadow" along a horizontal, then vertical line, visible only on certain darker backgrounds. (It is most visible on the dark blue Samsung USB media explorer). This happened about 35 months into my ownership, which was luckily just within my credit card extended warranty. I received a full refund for the purchase amount, as the repair cost exceeded what I paid. I upgraded to a 65" 60R QLED. I'm happy with it, but would recommend the 70R for the better LED backlighting.