Pretty much everything on any Apple product is playable on any other Apple product now…I think…
What’s New in Remote.app Version 2.1?
• AirPlay video support to control iTunes on your computer to stream videos to an Apple TV
• Internet radio control to play thousands of internet radio streams in iTunes on your computer
• The ability to control iTunes on your computer to play Movies and TV shows that are rented from the iTunes Store
• Addresses issues connecting to an iTunes library or Apple TV
• Includes stability and performance improvements