If you have an Apple TV, the included remote can also be used to control various things on non-Retina MacBook Pros, like iTunes. However, if you’re trying to navigate through menus on your Apple TV ...
To set this up on your Apple TV, go to Settings > Video and Audio > Audio Output and then choose the HomePod or the stereo pair as the default output. If you have two HomePods, you’ll first need to ...