JVC 42X776 Plasma Screen partially broken. My wife brought home this tv from work because they

Question

My wife brought home this tv from work because they were just going to throw it out... "Good Wife" I said. Anyway.... I turn it on and the bottom left quadrant remains black. Some lines start to appear and creep across the screen. There is also a black patch in the middle that has absolutely no pattern to it. The best way to describe it is "flower shaped" I can change inputs and access menus. It locked on my one time and I had to do a hard reset (aka pull the plug). So, I'm thinking it overheated at one point and fried something inside? I'm going to take it apart and look for some smoked ICs. ANy other suggestions? Thanks!!