Have a new 3rd generation Apple TV and an iOS device that supports Bluetooth Low Energy? Then you have everything you need to do “tap to setup”. Follow the instruction in this Apple support document.

In a nutshell, you touch your iOS device to your Apple TV and a login screen will appear on your device. Login to your Apple ID, follow the instructions, and your Wi-Fi network and password, iTunes Store account, and Language and region format preferences will be transferred to your Apple TV.

This is cool. I bet the next Samsung phone will do this, too!