Use Siri to navigate Apple TV
Because Siri recognizes the names of onscreen labels, you can use your voice to navigate any screen on Apple TV. You can also use Siri to change settings.
Use Siri to navigate the interface of an app
Press and hold the Siri button on the Siri Remote and say the name of an onscreen control—such as an item in the menu bar at the top of the iTunes Movies Store.
Apple TV selects that control.
Use Siri to change settings
Open Settings on Apple TV.
Press and hold the Siri button on the Siri Remote and speak a command you see onscreen to open or activate that setting.