We just learned more about what it will be like to use the iPhone as a remote control for your entire home

The first home appliances that will work with HomeKit, Apple's platform for connecting all of the devices in your home, just went on sale this week.

Now that people can actually buy HomeKit-certified smart light bulbs and door locks that you can control with your iPhone, Apple has added a new support page with a few new details about what you can do with HomeKit and some tips for getting started.

The details answer a few questions about HomeKit, including what role the Apple TV will play in it. Here are a few interesting things we learned:

• You'll need an Apple TV if you want to control your home appliances when you're not at home. Apple's support page says you'll need a third-generation or later Apple TV running software 7.0 or after. We've heard about this in previous reports, but now Apple has confirmed it. As long as you're signed into the same Apple ID account on your iPhone and Apple TV, you'll be able to control your HomeKit appliances using Siri remotely.
• You can control a group of devices with a single Siri command. If you want to be able to turn on all of the HomeKit devices in a given room, you'll be able to do that with a single Siri command. There's an option to group together gadgets in some third party apps for certain HomeKit accessories. It's important to remember that this option might not be available for all HomeKit devices, though.
• You won't be able to use Siri to unlock your door, though. Although there are HomeKit-enabled door locks, the Siri voice commands will not let you unlock your door, according to Apple's support page.