The communication between the Fire TV Cube and the other devices is carried out by multi directional IR blasters. As far as TV is concerned that is controlled by the HDMI cable. This also means that the Fire TV Cube can also fire up your TV and shut it down as well. So next time you want to binge all you need to say is “Alexa, play Californication” and voila you will never have to touch the TV remote.
