I just responded to your other post. Sorry about that.
We know that it happens on several inputs now, but how many lines are there and where are they on the screen?
Sorry about previous post.
I'm experiencing thin black lines from the top of the screen to the bottom. It covers about a 1/3 of the entire screen. Did a Picture Test still no improvement. I played a DVD as well, I still see the lines. I viewed HD as well as Standard channels, still see the lines. Any advise?