Is there such a thing as a 3.1 soundbar. I simply want to improve the sound of my TV. I have considered just connecting my hifi speaker (2 channel), but wondered can you get a soundbar with left, right and centre with the option of a sub to hide behind the TV. As some soundbars don't give true surround sound for obvious reasons, this seams a senible option? Or do I get a 'surround' sound bar e.g. marantz, denon or yamaha. What do to recommend for a panasonic 37 inch plasma.