Apple just released software update version 4.4.4 for Apple TV. This release has a build number of 9A406a. There does not seem to be much new released besides a few bug fixes. Go update and let us know what you find.
You can download it over the air or via a direct download link here: Apple TV 4.4.4 download AppleTV2,1_4.4.4_9A406a_Restore.ipsw