Summary: Severe flashlighting and LED bleed in corners. Like other reviewers, I too had the little white cloud in the top right of the screen on dark scenes. After about a week I couldn't take it anymore and had Amazon swap it out. The next one I got was about 100x worse. This time there was severe LED bleed and flashlighting in all four corners. Oh how I like to watch dark scenes ruined by blotchy white cloudy spots.
Summary: I purchased an LG LCD/LED flat-screen television in January 2012. In late June or early July the television stopped turning on. I contacted LG and a service contractor was dispatched to repair the television. It was approximately a week between when the television broke and I contacted LG and when it was repaired.