https://www.engadget.com/2011-10-13-ipad-mirroring-mode-on-your-appletv-2-how-to-do-it.html
iPad mirroring mode on your AppleTV 2: How to do it
Oct 13, 2011 - One of the least publicized features in iOS 5 is the ability of the iPad 2 (and, apparently, the iPhone 4S) to wirelessly mirror its screen to a...
how to doappletv 2ipadmirroringmode