All Worked Up

All Worked Up! is the second half of episode five of Season 9, which aired on December 31, 2004 along with Lights, Camera, Opera!

Summary
Arthur aces five quizzes in a row. But his luck runs out when his mom takes a new job. At first, Arthur and D.W. get all worked up over this change at home,but they learn that they'll always be priority #1.