airplay display
Early 20-13 Macbook Pro A1398 15" Retina Laptop - the mirroring options only show up when I have a HDMI cable hooked up to it. If I try to use the AirPlay display it doesn't show up and never finds the AppleTV I have. When HDMI is hooked up it will hook right up to the AppleTV no problem.
I also have an early 2013 Macbook Air A1466 and it does the same thing.
MacBook Pro Retina