After the title sequence is done, a behind-the-scenes look at how the sequence is animated reveals that work is done at an Asian animation studio/sweatshop, in grim and bleak conditions.
The studio/sweatshop is imprisoned within the 20th Century Fox logo, itself gray and bleak, and surrounded by extra searchlights, barbed wire and a watchtower.
Bart's chalkboard gag for this episode ("I must not write all over the walls") is written all over the classroom walls, clock, door, and floor.