So, I have a 3rd gen, rev. A, Apple TV and I've been trying to use peer-to-peer AirPlay to stream movies and music from iTunes on my rMBP (running 10.10.2) to my Apple TV, but iTunes won't give me the option to connect to it. The weird part is that my MacBook detects the Apple TV and displays an option to use AirPlay display in the menu bar, but iTunes won't recognize it. Also, the reason I'm trying to use the peer-to-peer method is because I'm on a university network that isolates all hosts so they can't interact. Is this a known bug or am I doing something wrong here? Has anyone had issues with this and been able to resolve it?