Apple has pushed an software update to the Apple TV and it is version 4.2.2 build number 8F305. The update is likely bug fix related.
Here are the updates:
Apple TV Software Update 4.2.2 features
|Audio||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.|
Here's the direct download link.