I bought a Philips 28PW6517 TV and combo (with DVD and VCR) in May for Euro 2004. Everything was perfect to start with, but in September a rather annoying high pitched noise started to develop intermittently. Usually when bright white appeared on the screen. Sometimes it wouldn't happen at all, sometimes it would happen as soon as I turned the TV on, and other times after 2 or 3 hours of it being on. I called the electrical retailer in question, and they sent an engineer out. He asked me to turn it on and then said "Well I can't hear it!". I explained that it doesn't happen all the time, but when it does you cannot watch the TV as it spoils the viewing experience. He replaced the linearity coil and said that that solves 99% of high pitched sounds as the coil works loose and vibrates causing the noise. Anyway that didn't help and he came back this week and replaced the transformer saying after that there was nothing he could do. Well watching football last night, the noise was back and I had to turn the TV off - incredibly annoying. What are my rights here? Can I take the TV back to the retailer and ask them to switch it - I still have the original receipt. Can I get my money back (my preferred option) as this is the first TV I have ever had a problem with, and after this experience I never want a Philips again. Any help for this newbie to the forum?