What do I need to connect a Home Theatre System (HTS) to the TV?

You can connect a Home Theatre System using an HDMI cable to the TV. If your HTS has an HDMI ARC connection, connect it to HDMI IN 1 (ARC) on the TV for the best setup, as this eliminates the need for an extra audio cable. If your HTS does not have HDMI ARC, you should also add an optical audio cable to send the TV sound to the HTS.