We have a two year old LN55C650 that has begun to go dark on the right hand side of the screen. It started last week with the lower right corner going dark, but has since worked its way up to the whole right side. I believe the pixels are fine as the picture is still showing, it's just that the picture is very noticably darker than the left side. The problem is persistent on all input modes. As well as the darkness, there are two faint bars visible across the middle of the screen on the right. Again, the picture is still visible, just very dark or shaded on the right hand side.
I'm wondering if it could be a bad bulb?
Thank you in advance for any advice or input.