Arthur Weighs In

Arthur Weighs In is the first half of the 3rd episode of Season 9. It first aired on December 29, 2004 with The Law of the Jungle Gym.

Summary
Arthur has a starring role in a school play, however, he cannot fit into his costume due to his newly acquired husky pants size. Arthur embarks on a diet to fit into his original costume, but when it does not work, his friends help him learn to eat healthier and be more active. Will he be able to fit into the costume before the play?

Trivia

 * "Husky" is a larger size of pants.