Here's some info that might be useful, I have the H8000 curved 55'' bought it in April. Some time back I noticed the dimming processing seemed to go wacky. On a panoramic movie with the black bars on the top and bottom I was getting sporadic light flashing in the black bars, on bright scenes, a light colored wall in the back ground would have sporadic dark splotches, I tried different Smart led Setting , dynamic contrast settings, cinema black, everything. I thought I had wasted 1900.00 dollars. I don't know why it took me so long but today I hit the picture reset button and it fixed it, no flashing in the black bars, background walls are a solid color it's working like it did when it was new.