I bought a Sony model KDF - E50A10, SN - 8155828 in 2005 after a few years of service and the warranty had expired I noticed that the picture was staring to become blue / bluish all the time. Inquired with some other people who have the same unit and they also have the problem and reported it to Sony to no avail. Seems like there is some sort of optic block or some defect in the units. I hear now there is some sort of resolution that Sony is offering people with the defective units. I have posted this on the I have a Defective Sony TV and AV Science Forum I will also send it to the Sony Listens team. I have been a Sony consumer for quite sometime but now I have second thoughts about the products now.