My mother is having a nightmare dealing with Sony over the problems she has with her bravia kdl 46w 4500. The television is just over 2 1/2 years old and has recently developed the vertical lines and very distorted picture that others have reported. Sony customer services in Egypt asked her to provide proof of the extended warranty to instigate some sort of resolution to the problem but unfortunately, the UK Sony customer services are refusing to sort this problem out. Sony say that they never received the warranty form but she did send it off and provided copies of the receipt and the form she sent at the time of purchase. It was around Christmas time and post is often lost, so we can only assume it didn't reach them. I am disgusted by their attitude and lack of concern for customers. We are getting legal advice on this but I would really appreciate any comments from anyone who may have had similar problems.