In addition to iOS 5.0.1 developer release, Apple also pushed iTunes 10.5.1 beta 2 through Dev Center which is integrated with some improvements, enhancements and support of iTunes Match for all iDevices including Apple TV.
iTunes 10.5.1 Beta 2 Updates:
- iTunes Match is also now available for testing on Apple TV.
- On your Apple TV, choose Music > Turn on iTunes Match.
- Please remember to backup regularly and do not delete the music you add to iCloud from your computer.
Those who are not familiar with iTunes Match, this service was announced at WWDC 2011 alongside iOS 5 and iCloud. iTunes Match would be a paid service that stores your music library in iCloud and allows you to enjoy your collection from anywhere, on your iPhone, iPad, iPod touch, computer and Apple TV.
Apple announced later, iTunes Match will be released for general public in October, but till now its not out there and no official words are spoken for its expected release.
Download iTunes 10.5.1 Beta 2