Airplay will not show up in my upper toolbar. It does on my Wife Computer, but not on any of my devices (iPhone 5, iPad2 or Mac Pro running 10.8.2)...not sure what to do??
If you want mirror your macbook pro does not support it, you need early 2011 or newer (mid 2011 for all other Macs). A third party app, www.airparrot.com can do it for you though.
The iPhone and iPad should work though, check they are on the same network and apple id as the Apple TV, reboot including router to see it that solves.
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