With the Apple TV increasingly providing access to cloud-based iTunes content, it’s becoming less necessary to keep a computer on to serve up your iTunes library. If you have AirPlay speakers in your house, you may think that you still need to keep iTunes up and running to stream content to those, but you can actually do it all from your Apple TV. Last year’s 5.1 update brought back the ability to send audio to remote AirPlay speakers—a…
