> Pick up an incoming call from your iPhone, listen to music on your Mac, or upgrade your TV experience by taking the sound from your Apple TV to the next level — they all connect to HomePod mini.

From the Apple website

Apple's site is a bit contradictory on this. In another place it lists speaker features and it lists "Home theater with Apple TV 4K" as a feature of the full size HomePod but not the mini.

Inquiring minds want to know.

Home Theater uses the full size HomePod's to do 5.1/7.1/Dolby Atmos surround sound. It requires the spatial processing to allow for the surround sound experience.

The HomePod Mini can be used as a stereo pair, and connected to an Apple TV with no issues.

Weird. I see that too. Not sure what the table is trying to state then. https://www.apple.com/homepod/

This is handled via Airplay 2, so I can't see a reason why it wouldn't be supported on the mini.

Oh that's a real shame if so.. missed opportunity!