Why connect a TV via Bluetooth to an Apple TV?

In the Bluetooth menu of my Apple TV, which is connected to my TV via HDMI, I can connect my AirPods or other headphones to my AppleTV, which is of course useful. In addition, I can also connect a TV (like a Samsung series 7) to my AppleTV, but I have no idea, what this is good for as I can‘t recognize any difference after connecting the TV to the AppleTV via Bluetooth?

So what is this good for?