Technically, the Sonos One isn't meant to be used as a TV audio device. It's really just a smart playback option, with voice activation at its heart. But with a little technical trickery, it can also supplement some TV brands as well.The key here is Apple's AirPlay 2 system. If you have an Apple TV, you can use Airplay 2 to sync with your Sonos One. Or, even better, you can pair up a couple of One speakers to deliver stereo audio.