Flat Panel TV were always meant to use with a sound system. It is only meant to display video. The belief has always been they are for higher end viewing. And it’s impossible to get good sound out of a audio in a chassis that thin, that is why sound bars exist. Ask anyone who knows home theaters and they will tell you more than 50% of the experience is the audio. You’re better off spending money on a good audio system and even going with a smaller screen if dealing with budget constraints for the best experience. They make them as thin as possible because people want that.