The Apple TV Software 6.0 update has once again been made available by Apple. To get it, go to Settings > General > Software update on your Apple TV. For those keeping track at home, Apple apparently pulled the original update after it caused installation issues for what seemed like a significant number of people. Sounds like they've been working hard to fix it since then, and this then is the fix.
New features remain the same - iTunes Radio (U.S. online), AirPlay your iTunes purchases to other people's Apple TVs, and some other stuff:
iTunes Radio: Create your own radio stations and listen to them ad-free with iTunes Match. (Available only in the United States.) iTunes Music Store: Browse, purchase, and play music directly from the iTunes Music Store. iCloud Photos: Adds support for playing video from a shared photo stream and viewing photo streams from multiple contributors. AirPlay from iCloud: Apple TV will play content from iTunes in the Cloud instead of your AirPlay device when possible. Requires iOS 7 on AirPlay device. Podcasts Sync: your podcasts and podcast stations across Apple TV and all your iOS devices. Subtitles & Captioning: Automatic subtitle selection based on Apple TV language setting. Customize closed caption style. Conference Room Display: Lock Apple TV into Conference Room Display (for business and education environments) and >show onscreen instructions for using AirPlay. Software Update: Keep your Apple TV always up to date by automatically installing software updates when available. Setup: Use an iPhone, iPad, or iPod touch with iOS 7 to automatically transfer network settings, your Apple ID, and language preferences. Not available on iPhone 4 and iPad 2.
I'm downloading it right now, and I'll update this post as soon as they've updated my Apple TV. If you previously had a problem and need to restore via iTunes to fix a bricked or bad installation, here's how:
If you've gotten the update to install, let me know how it works for you!

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