"4th Grade" is the twelfth episode of the fourth season of the animated television series South Park, and the 59th episode of the series overall. "4th Grade" originally aired in the United States on November 8, 2000 on Comedy Central. The episode focuses on the main characters' first day of fourth grade. The three previous seasons of the program featured the main characters in the 3rd grade with Mr. Garrison as their teacher. This grade change plot device allowed for the introduction of a new teacher, Ms. Choksondik, and introduced a new opening sequence in which the show referenced The Six Million Dollar Man. It is also the final resolution to a three-part mini-arc involving Mr. Garrison coming out of the closet.