Installing nitoTV on your Apple TV used to involve a mildly difficult SSH process, and for those folks who are turned off by running Terminal and punching in lines of code, the newest version of greenpois0n (RC6) might pique your jailbreak interests. It'll perform an untethered jailbreak (meaning, you can reboot your iProduct without the need to re-JB), freeing your device (iPhone, iPad, etc.) running 4.2.1 and allow you to fulfill all of your out-of-jail needs. Bundled in this new release is a loader that'll inject nitoTV right onto you