Received my 50ST50 last Thursday from Amazon. Ran the color slides til Sunday and decided to watch some TV. Awesome looking screen too say the least. One thing I noticed as the TV was going through the colors, like the color green, I noticed a cross hatch pattern in the upper right of the screen that was lighter than the color. Green is where it was noticed the most out of the 4 colors, but still noticeable in all colors. The left side had a bigger pattern but you really had to look for it. During regular programming I didn't notice it at all. One thing though, the higher the contrast the less it was there. All in all it's a keeper.