Simpsons: The Movie Easter Egg - Hidden Thx and Character Developments

To find the Hidden THX go to Language selection and hit enter, press left until you get to English 5.1 and hit left one more time highlighting the Audio, then hit enter. To find the character developments, go to Special features and select deleted scenes and hit enter. Now push up until you underline Deleted scenes and hit enter. This also works for a lot of trailers and special stuff.