Having received a buzzing Pioneer 434 from John Lewis last Friday, I complained about the buzzing and received a full new set-up today i.e. Display, Tuner, Stand & Speakers. My wife was at home, the blokes installed and removed the old setup. Now, I get home, can still hear some buzzing but definately not as loud as the previous set. However, the top edge of the black gloss surround has scratches everywhere, that can't be removed by the supplied cleaning cloth. I went into the service menu using the following button presses on the remote : 1) Button directly below the 9 button - Press and hold for 4 secs 2) Press the following in Turn : Left - Up - Left - Right 3) Press the Orange Standby button The Display will now show the service menu. Scroll through using Up or DOWN. The following are displayed : a) HOUR METER 00125H47M b) MR HOUR METER 0005H58M c) P ON COUNTER 46 TIMES Now, I'd deduce that this means this Plasma has been switched on for 125 Hours and 47 Minutes and has been switched on 46 times. At least 6 of these are down to me testing for buzzing. I wouldn't classify this as new, thoughts?