I have a Toshiba 32MW7DB. A few years ago I hooked up a playstation to the set and there was a loud buzzing noise coming from inside the tv, needless to say I switched it off straight awayand the noise stopped. It still happens occasionally if I switch the picture size to 'cinema'. Since it didnt really bother me, and the tv seems ok I havent had it checked out by an engineer. My problem is that I've recently bought a multiregion dvd player and tonight I played a NTSC disk and the buzzing came back and was irritating throughout the movie. As soon as I switched off and returned to PAL the noise stopped. It would appear it only happens with NTSC playback. Has anyone else expeirienced this problem, or does anyone have any idea whats wrong with my tv? Is this likely to happen with all region 1/ntsc disks that I try to watch on my tv? Please somebody give me some idea whats wrong, thank you.