Am I missing it or is there really no app for the Macbook Pro to control the Apple TV like on the iPhones and iPads?
There was old Apple Remote control I had one for 2007 MBP in the past.
retina models don't have the IR sensor anymore, so you can't use the old remotes.
Looks like someone made an app that allows you to use the new Siri remote with OSX.
https://forums.macrumors.com/thread...r-mac-with-your-apple-tv-siri-remote.1941813/