Apple released Apple TV TV Software Update 4.2.1, an update for the company’s 2nd generation Apple TV. The update fixes a flickering video bug introduced in version 4.2, and some other small issues.
The patch notes:
- TV compatibility - Addresses issues that may cause the screen to flicker or display incorrect color on some older TVs.
- Wake from sleep - Addresses an issue where Apple TV may not wake up from sleep.
- Audio - Addresses an issue where audio may not be heard on some TV models after switching from another input.
- Stability and performance - Apple TV Software Update 4.2.1 includes stability and performance fixes for Apple TV.
You can find the update through iTunes if you have an Apple TV 2.