I have noticed that when I first turn on my 55lh40 it "blinks" about 10 times before the video stays on constantly. In other words, when I first turn it on, the picture will go black for about half a second and then come back on. The picture stays on for a few seconds and then the screen goes black again for about half a second. It does this about 10 times before the picture stays on for good. Other than this, I've had no problems with the picture staying on and have had no problems with the quality of the picture. I've never seen this before in a properly operating TV, but before it goes back in the box and back to Sears, I wanted to check here and see if anyone else's does this or if this is, maybe, a quirk of this model. Thanks.