I have a 3 year old, 50" version
I have a 3 year old, 50" version of this Samsung plasma. 6 months ago we started to notice a very slim vertical line running the full length of the screen (near the center). It starting out just showing up occasionally then progressively got worst and now the line is always there. Then it started to develop another slim vertical line and now it is up to 3 vertical lines! I've tried everything and every adjustment in the settings but lines are still present. Any suggestions!! We love this TV and picture quality and hate that this problem has occurred!