Make the call. In your country or 1800SAMSUNG in USA.
2 years old. about four months ago i noticed a dark area in the middle of my screen. it can best be described as looking like a tornado from top to bottom. since, another has appeared alongside of it and two more are faint on the sides of the screen. they get darker with time. as you can imagine it is very annoying. other than that it has an awesome picture. Model code # LN40B530P7FXZA. Version # CN01. what can be done?