Just got my new TV home today. After it stayed on for about five minutes of picture perfect, the screen started to act up. The display became descrambled (see attached pic) and basically unwatchable because nothing is visible. Only horizontal lines remained on the screen. While the screen was frozen as such, the audio seemed fine. I turned off the TV and re-started it again after a few minutes and of course, it was fine again. But then again, it was fine only for less than five minutes.
I also tested TV with a DVD movie and the same thing occurred. The screen only lasted a few minutes. It is as if the TV is overheated. Also, there is a screeching noise coming from the TV after the screen is frozen. Not sure if this noise is related to this problem or not.
Any help/tips from anyone would be greatly appreciated.

I also tested TV with a DVD movie and the same thing occurred. The screen only lasted a few minutes. It is as if the TV is overheated. Also, there is a screeching noise coming from the TV after the screen is frozen. Not sure if this noise is related to this problem or not.
Any help/tips from anyone would be greatly appreciated.
