LG TV supports audio outputs through many options. There are two ways to play audio on your LG TV - Through the internal speakers or by connecting your external audio devices.
Connecting through your TV speakers and external audio devices
Using TV Speakers
Locate "settings" using your magic remote control and navigate your way to "all settings".
Then locate "sound" from the menu provided.
Select "sound out" and choose the "use TV speaker".
This will automatically programme your TV to connect audio through its internal speakers.
Connect to external audio devices
There are multiple ports on the back of your TV that you can connect to your external devices.
LG TV only supports HDMI ARC, Optical, or line out for cable connections.
Simply plug in your external audio devices to play audio and select the "sound out" option to "external audio devices".
For further help, you can also connect your LG TV to your speakers as a form of audio output using Bluetooth.
Check out on how to use your "LG Soundbar" with your LG TV for more information.