Apple has released iOS 4.4.2 for the Apple TV. A couple of days later after the release of iOS 4.4. This update brings some fixes for the audio and video playback, movie description and more. See below for more info and the full changelog.

Changelog
Audio playback: Addresses an issue in which audio is not output when playing some video content.

Video playback: Addresses an issue in which video is not displayed when playing some content.

Audio output setting: Adds an audio output setting for switching to 16-bit audio for compatibility with some TVs and AV receivers.

Live FF/RW improvements: Improves the performance of fast-forwarding and rewinding live events.

Movie description: Addresses an issue in which the description information is not displayed for some movies.

YouTube video order: Addresses an issue in which YouTube subscription videos were not ordered by date.


Source- Redmondpie