I had my nephew over with his parents over and he threw a ball at my tv. It made a dark spot on the screen. I had the repair guy come out and he put a new screen in and it seemed to clear up the problem. It also seemed to fix some kind of lines on that were on the screen.
I was not aware that there was an updated screen tho. I got it replaced about 1 year ago. I have not noticed any side affects.