A:Answer There is an HDMI input which you would connect to the HDMI-ARC port on your TV. Here's some information you can refer to which I found online:
How do I connect Sonos beam to my TV?
Sonos Beam connects to your TV’s HDMI-ARC port. Most TVs have two to four HDMI ports, one of which is labeled ARC, which stands for Audio Return Channel. The HDMI-ARC port syncs audio and picture, plus automatically pairs your TV remote to Sonos Beam. If you’re unsure if your TV has an HDMI-ARC port, consult your TV specs with the manufacturer.