Just took delivery of my Pioneer PDP-434HDE Plasma courtesy of the John Lewis pricematch. Top picture, only snag is the background buzzing from the screen. This is best described as sounding like a neon light. It changes pitch as the picture goes from dark to light. I sit 4 feet away and it is really noticeable when the sound is turned down. I know the receiver box has a fan but I can barely notice this compared to the plasma's tingling buzzing noise. Am I alone in this or is this a feature of the Pioneer or all plasmas? I am considering phoning JL to ask them to send out an engineer to investigate. Apart from that, majorly impressed with this beast.