Connect with HDMI
Use an HDMI cable to connect a Home Theatre System (HTS) to the TV. You can connect a Sony Soundbar or an HTS with a built-in disc player.
If the Home Theatre System has no HDMI ARC connection, add an optical audio cable to send the sound of the TV picture to the Home Theatre System.
Audio to video synchronisation (sync)
If the sound does not match the video on screen, you can set a delay on most Home Theatre Systems with a disc player to match the sound with the video.