Guitar Hero Live, Skylanders SuperChargers and Geometry Wars 3: Dimensions are on their way to Apple TV, iPad, iPhone and iPod Touch in the fall. Additionally, Disney Infinity 3.0 is heading to Apple TV by the end of the year. But that's the old news.
Here's the new, technical bit: Apple TV supports MFi-based gamepads, rather than non-certified Bluetooth options, as outlined in its description. MFi is a licensing program for devices that connect to Apple products and you can read more about it right here. Basically though, Star Wars fans and wannabe rock stars can rest easy. The newly designed, Bluetooth Guitar Hero Live instruments will work across all Apple devices, including Apple TV. Disney Infinity 3.0 will get a wireless Bluetooth base just for Apple TV (note that the console version of that base is wired, sometimes leading to terrible accidents). Skylanders SuperChargers uses Bluetooth devices and these will work with Apple TV as well, according to Activision.