Apple has pushed out an update for the Apple TV 2G which fixes a bug which causes the screen to flicker when the Apple TV is connected to an older TV. In other words, its just a performance and stability update.

Apple TV 4.2.1

The complete change log of the update is as follows:

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.

Download 4.2.1 Update For Apple TV 2G.

[via 9to5Mac]

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