Believe in Yourself

thumb|300px|rightBelieve in Yourself is how is called Arthur opening theme. It get aired in all episodes and also appears in the Arthur and Friends: The First Almost Real Not Live CD (or Tape), as the first track.

Hey and Crashes

 * In Version 1, D.W. says "Hey!" and a boing sound is heard when Arthur does not crash.
 * In Version 2, D.W. only says, "Hey!" and a boing sound is not heard.
 * In Version 3, D.W. only says, "Hey!" and broken pieces sounds are replaced by water sounds.
 * In Version 4, D.W. only says, "Hey!" and broken pieces sounds are replaced by clutter sounds.