I have a 32XBR450, one month old. I was noticing when viewing the TV with a white background, the right and left side of the screen is slightly darker (maybe a 3" width) and also has a slight pink or magenta color to it. I had a service guy around to look at it, and he said this is normal for flat screen TV’s. I asked him if he was a Sony tech. and he replied he works on all kinds of TV’s and that he is "authorized" to work on behalf of Sony.
I then called the sales person at "The Sony Store" where I purchased the TV, and explained the problem to him and expressed my concern over the fact that it was not a Sony expert who looked at my set. The sales rep agreed to come over to my house and see for himself the problem I was having. After seeing the dark/pink bands he said he would contact Sony and have one of their techs come over and evaluate the set, and then I could decide to keep it, or return it. As it stands now I am waiting for an appointment with the Sony tech.
The problem I am describing is very subtle, but none the less, still there. I’II wait and see what Sony has to say. I have read on other forums that this can be problem, and that if I request another set, it may turn out to be better, or worse.
See this tread which I started about this problem.
HERE