With that in mind, here's how I improved the audio on my LG TV and how you can do the same. How to improve the audio on your LG TVSound Modes go a long wayFirst things first, the easiest way to improve the audio on your LG TV is to change its Sound Mode. Fortunately, changing the Sound Mode on your LG TV is simple. Go to Sound > Sound Out > Use Wireless Speaker. Overall, changing the Sound Mode on your LG TV and using Bluetooth are two of the easiest ways to improve its audio.