I've tried using the old method of holding down 'channel up' and 'channel down' on the TV during power on, but it doesn't work on this model. (My old TV was the KV32DS65U) I've tried searching the forums so as not to ask a question that has been asked before, but couldn't find an answer. My problem is with sound, not with picture (no rolling bars as yet thank god). The sound is slightly ahead of the picture on all channels and I was hoping there may be a delay setting within the engineers menu. Any help greatly appreciated.