We purchased a Sony KDF-50WE655 Grand WEGA in December, '04 for Christmas. The TV has recently developed a "blue star field", also known as the "Sony Optical Block" problem. I took this picture of the screen using my iPhone.



Friday, I called Sony about the issue; from information on the web it appears to be a known manufacturing defect. Sony said that they would get back to me within two business days about what they might do. Allegedly, Sony can't really fix the problem. The best they can do is replace the "optical block" unit with one that is just as likely to fail within 2 to 5 years. The average lifetime of an LCD display is 60,000 hours; even at 10 hours/day that's 16 years. It's not unreasonable to expect that a TV of this price should last 10 years.