Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do you have lines on your screen?

The Samsung LNT4065F 40" 1080p LCD HDTV I purchased has superior viewing quality. However, there appears to be two very faint vertical lines approximately 4 inches in from the left and right side of the screen. My perception is that the TV may have been a demo, and was tuned to a "non-HD" channel for an extended period of time - thereby burning the two lines right at the "non-HD" border. Has anyone else seen this? Is it possible that the TVs Amazon is selling are not "brand new" and right off the production line?Any feedback or insight would be greatly appreciated.