seas0npass 5.2 jailbreak
The Firecore dev team have just released the updated versions of aTV Flash (black) and seas0npass jailbreak that support Apple TV 2G on iOS 5.2. They have made use of the exploits of evad3rs dev team  this purpose. Here's the catch, seas0npass only untether jailbreaks the second generation Apple TV running on iOS 5.2 or older firmware versions, Apple TV 3G is still not jailbroken. Remember, plugins like Plex, Remote HD, and XBMC are not compatible with iOS 5.2.