“Music streaming is similarly simple—the Now Playing screen on your device has an AirPlay icon. Tap it, tap Apple TV, and within seconds the music will begin playing on your Apple TV,” Gideon and Jacobowitz report. “You can multitask while streaming video to Apple TV as well—great if you want to check out IMDB while you’re watching a movie to get details about the film.”
Gideon and Jacobowitz report, “Just to clarify: AirPlay is a one-way street. You cannot stream something you rented on Apple TV to your iOS device. Therefore, we recommend buying or renting your content on your iOS device whenever possible, so you can rent a TV show, start it on your iPod touch and finish it on Apple TV… Despite the minor limitations, AirPlay is an excellent additional feature for Apple TV and iOS device owners.”
Rea more in the full article here.