I bought VIZIO LCD TV from Costco in September 2007. This TV is not working after only three (3) years in which 9 months were not used due to my winter vacation. It was revealed that it requires the change of the mother board. The estimated cost is over $500 including the diagnostic procedure. My old TV is still working after 12 years of operation. How can this modern LCD TV's mother board goes out so quickly? read full review »