What comes with the Apple TV?
Included in the box along with the Apple TV itself is a power cable, a remote control and documentation. An HDMI cable is not included and you'll need one to connect to your high definition TV, so plan for that if you are purchasing the Apple TV.
If you plan to buy the Apple TV in order to subscribe to HBO Now, the new streaming service that gives customers access to the network's full content without a cable subscription, then you could say a free month of it is included with the Apple TV as well. Apple and HBO are currently offering a free month of HBO Now for new subscribers.