LG flat panels have weird speakers.

[zenith2134]

This is likely the method LG uses to produce "pseudo surround" sound from the panel. Think about it, if the hookup allows for directionality within each cone, any old DSP can then be used to take 2.0 stereo or even mono content and reproduce this effect. On the old Sony Trintrons with SRS simulated surround, they had two beefy oval speakers, perhaps ~5W one per side, but controlled the phase going into each via its own feedback wire which was in addition to the main STK type power amp.

THOSE TVs had serious audio performance....Anyone remember the Wega set with the subwoofer built in?