Sony's video service PlayStation Vue is now available to Apple TV owners, assuming they have a 4th generation device.
Vue offers Apple TV owners live sports from ESPN and NFL Network as well as quality shows from AMC, FX, HBO, and Showtime, so you're getting a big boost. Naturally, the Siri remote and touch navigation are supported.
If you're new to Vue, sign up through the site and link your account to Apple TV. Otherwise, skip the site and link your account to get started.