| Is the room damp or humid, if so it could be the high voltage feed into the CRT(screen). If these conditions stay you could be damaging the life of you tv. However, I would not expect this to cause the tv to vibrate! Can't advise on that, tvs don't contain any moving parts which is puzzling. It may be something to do with the degaussing coils (if they still use them nowadays). The degaussing coils are used to stop any metals in the tv becoming magnetised and causing problems. Personally I'd call for an engineer to come and look at the tv, especially as it is new.
Good Luck. | 
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