I called Sony and they asked me some questions. I told them that it was a Sony 52 kdlz5100 and the problem started a year ago. The Bravia was made in 2009 and it started with a vertical line in the middle of the screen. It's now seven vertical lines that run from left side of the screen to the middle of the screen. It's takes a few minutes to over an hour for the vertical lines to go away. The vertical lines are green, blue and yellow, but you have to be up next to the screen to see the in them. From a distance they look like dark vertical lines.
When I spoke to the call center person for Sony, they asked me a few questions and I could hear them typing. After answering the questions, I was told it was not the LCD Panel and therefore was NOT covered under the extended warranty. I was given the name & number of a repair service. I asked what if the repair service finds it to be the LCD Panel and I was told be Call Center representative that Sony would then fix or replace the 52 Z5100, but would NOT reimburse me the money I paid for the repair service to tell me it was the LCD Panel.
Has anyone else been told this same story? I spent over $1400 for this TV set and I've had it just over three years. It seems WAY to soon to have to replace. This is my fourth Sony TV and the first to encounter problems.