In addition to helping you manage your HomeKit accessories remotely through the fourth-generation Apple TV, tvOS 10 beta also packs in expanded support for a wider variety of Bluetooth accessories. It's interesting that after connecting an accessory to the Apple TV, tvOS 10 puts up a prompt offering a user to download a companion App Store app.
The same hardware accessories download prompt first appeared on the iPhone, iPad and iPod touch following the iOS 3 software update back in September 2009, but this is the first time we've seen it implemented on tvOS.