I have a GE HDTV

Question

I have a GE HDTV rear projection flat screen modle D52GW12. I bought it at Best Buy 3 years ago. My problem is - is that my screen blinks/flassjed and then goes black and the power shuts down. I've checked all outlets that the TV was plugged into (or could be plugged into) and they are all working fine... I spent a good amount of money on this TV, along with other GE products. I would hope that the TV would last longer than 3 years. Any ideas on what would be wrong? Or how to fix it?