Streaming, video and audio madness at home ( Twitch and content production )

Not really the thread for this... but yes, depending on your TV.

A lot of TVs have audio out for this either via HDMI or optical. But in this thread you're more likely to find people with PCs that capture the TV and video via HDMI to then process it in OBS and then send it somewhere else (online streaming via Twitch or something else like a virtual cam setup).