I have a new Panny st60 and can't find out how to disable the speakers so that I can use only my soundbar. I have a polk audio sound bar. I currently have the sound bar plugged into the digital audio out port on the tv. I cam getting the right sound out of my soundbar, but I can't turn the tv speakers off. I wouldn't mind it so much but there seems to be a lag between the tv speakers and the soundbar, which creates an echo effect. I searched the official thread but only saw people say turn the speakers to 0, which won't really work for me because my remote controls both the tv and the soundbar so the tv speaker volume goes up every time I adjust the soundbar volume.