Hitachi 53UDX10B 53" Rear Projection Television "red sparkles" Questions

MY LG PLASMA SCREEN IS PIXILATED... LOTS OF RED AND BLUE AND GREEN DOTS ALL OVER IT. HOW CAN I REPAIR THIS CHEAPLY MARK is it pixels burnt or a sparkling effect there is a fix for the sparkling effect

...the dark areas such as clothes would have a silvery sparkling look and eventually their would be red and green wavy lines across the screen. It has now lost all picture. Good Day, hayzlett; Remote ...