Seas0nPass is a utility much like the Pwnage Tool which has been designed specifically for the 2nd generation Apple TV and this will now help users to jailbreak and boot Apple TV. Seas0nPass allows users to create custom firmware files for the Apple TV which renders this jailbreak process very easy and simple to do. There are plenty of great tutorials that will show you how to successfully jailbreak Apple TV.
The Seas0nPass jailbreak is a tethered jailbreak and this means that you need to manually put your Apple TV into a jailbroken state every time you turn it off. The jailbreak does however allow for a little more freedom and usability than Apple would like and it also opens the doors to some great new possibilities too. You can even turn your Apple TV into your very own web server to running XBMC.
The Seas0nPass is not like jailbreaks for touch based devices and there is no Cydia or tweaks available to enhance the users experience. That being said however, it is a worthwhile venture and makes Apple TV a little more interesting. Apple TV costs you just $99 and it is a really cheap and compact device that does a really good job. If you have Apple TV and you are looking to jailbreak it then now you can with Seas0nPass.