Jailbreak iOS 4.3.3, Jailbreak iOS 4.2.8 using PwnageTool 4.3.3, Sn0wbreeze 2.7 and Redsn0w. Following are complete guides and tutorials to jailbreak iPhone, iPad and iPod touch.
Following methid will guide you about how to jailbreak Apple TV with Seas0nPass jailbreak tool, which can create custom firmware like PwnageTool. Currently the jailbreak for the 4.2 (iOS 4.3) software is ‘tethered’. A tethered jailbreak requires the AppleTV to be connected to a computer for a brief moment during startup. Seas0nPass makes this as easy as possible, but do not proceed unless you are comfortable with this process.