I find the sound from our Panny with built-in speakers to be very good. The simulated surround that the set has is even quite good for what it is. Check your DVD player to make sure you don't have simulated surround sound on in that too. Several years ago with a different TV and player I had some bad sound on a disc and found that both pieces of hardware had simulated surround on. The interaction made dialog difficult to understand, most notably in a concert DVD I was watching at the time.