Photo Stream, NHL, AirPlay mirroring and more added to Apple TV with software update

It got a bit overshadowed by Apple's other software updates earlier today, but Apple TV users also have a few new features to enjoy whenever they're ready to plop down on the couch. Version 4.4 of the Apple TV software is now available to download, which adds the new Photo Stream feature to view photos stored in iCloud, as well as AirPlay mirroring, plus content from the NHL and Wall Street Journal, and a new movie trailer section. You'll also now be able to view subtitles in Netflix (when available, of course), and you have a few new slideshow themes to choose from.