Start with a TV repair store. Be advised that the replacement screen will more than likely be equal to or more than the cost of the TV. Manufacturers typically do not sell LCD panels "over the counter" or as repair parts so you will have to go through a repair center or TV repair center to get one.
Hi Thank you for your prompt reply Understand your views and comment. I will contact my local repair guy and get a price for the repair. Sidefire
I had the panel replaced on my Sony 32" XBR4 recently (under warranty). The invoice for the repair showed that panel cost was more than what I had paid for the TV (open box).