Samsung HLP4663W 46" Rear Projection HDTV "lg 650" Questions

Have LG DLP projection tv with blue spot in middle, how I get rid of it? The light engine is defective. The part is an entire assembly. It is about $650.

...650 for a 42" LG with much better specifications and more current technology.When I tried to research your TV,I googled basically the model number and when was it manufactured.The last page I saw ...