So about 3 years ago I buy my first flatscreen TV when the old picture tube set died, a Samsung plasma C series. A few weeks ago, a thin verticle line appeared across the screen. The other day a second one appeared. Doing some online research, I learned that this is actually a common defect in flatscreen panels (plasma, LCD and LED), and the Samsung C series has a large number of defective panels that are coming to light. Of course my set is out of warranty, but I still contacted Samsung via their on-line chat program. The rep told me to update my frimware and that would solve the problem and remove the two thin lines. I updated my firmware as instructed, and guess what.... the lines are STILL there. Luckily I had the transcript of the on line chat emailed to me, where the rep assures me this will remove the lines. Now I'm trying to contact Samsung to see if there is anything else they can do, like maybe give me a new TV since they put defective panels in their sets. Of course they are not respoonding now. Wait and see I guess. Anyone else have problems like this?