When I visited a relative for Christmas, several of us played a game on his Play Station 4. We all had smartphones and used them as input devices. There was a drawing game, there was a trivia game, balderdash, that kind of thing. The smartphones simply had to go to a website, put in some code, and we were all connected to the PS4. It was awesome. Does something similar exist for Apple TV? I've looked through the app store but can't find anything. Thank you in advance!