Hi Andrew: If you’re searching for a way to get the best sound possible on your Samsung Q80T TV, you can use the eARC audio format. "Enhanced Audio Return Channel," or eARC for short, is the next-generation of sound. It allows you to send your TV’s audio to your HW-Q900T soundbar through a single HDMI cable. eARC can even be used when you’re streaming content to your TV, like movies or shows. ^Patty