Sony 65 inch projection screen problem

  I have a Sony 65 inch projection screen tv--Its a little over 2 years old---The problems started with lines in the screen---This later cleared up---Then later the tv would just shut off----The crazy thing was my father changed the batteries in the remote and this worked (lol....) Then the last and final problem--When you turn the tv on---the screen fades out to a complete green screen and then shuts off----Any ideas on the problem or solution---Thanks so much