You’re on Winows and there is no mac around to help you do the job of jailbraking your Apple TV 2 accidentally updated to 4.3? The solution has just arrived: recently released Firecore’s Seas0nPass for Windows can jailbreak your little box running latest firmware and easily go through the tethered boot process if needed. Seas0nPass is free and open source. The application and user guides can be found at Seas0nPass.com.

Firecore has also shared the news that they plan to have a preview ‘alpha’ version of their video player (with NAS streaming support) available next week.

Here is a preview of the video player in action.

(Firecore: In the demo a full DVD (VIDEO_TS) movie is being streamed from a remote AFP based NAS drive over wifi. Playback is handled entirely on the AppleTV, and requires no server-side transcoding. Full 5.1 sound is also supported.)

You may also want to read:
How to jailbreak Apple TV 2 on iOS 4.3 with Seas0nPass (tethered)
How to Watch Hulu on Apple TV 2
How to jailbreak Apple TV 2 with greenpois0n rc6