You can set up your Apple TV to control volume on a separate sound system, like a sound bar. It may not work out of the box, but poking around in Settings, you can use the convenient volume buttons ...

The rise of the soundbar has made it easier than ever to upgrade the audio for any TV, new or old. I’ve been testing home theater gear for many years, and can’t imagine setting up a TV without one.

I walk through how I set up sound recognition on my iPhone so it can listen for things like a doorbell, baby crying, or a smoke alarm. I go into settings, tap accessibility, then turn on sound ...