A HomeKit installation needs an always-on hub to allow you to control your compatible appliances from outside the home — AppleInsider shows you how to configure the Apple TV to act as the hub of the system.
AppleInsider – Frontpage News
Apple Day – Apple, iPod, iPad, iPhone, iTouch, iMac, iBook
Apple Day – Apple, iPod, iPad, iPhone, iTouch, iMac, iBook