Influenza: The Musical - S2-E21
Revealing mistake: During the song "Sixth Period", while Coach Tugnut is "running" on the treadmill, if you watch the treadmill, you'll notice that it isn't actually moving at all.
Even Stevens (2000)
1 revealing mistake in Influenza: The Musical
Starring: Shia LaBeouf, Christy Carlson Romano, Tom Virtue, Nick Spano
Close Encounters of the Beans Kind - S3-E8
Revealing mistake: When Louis and Beans fall from the sky on the bike, if you look carefully, you will see that they're both dummies.
Louis Stevens: I am making a quality cucumber shake here.
Ren Stevens: Not on my time.
Trivia: Shia LaBeouf voices the main character, Cody, in the 2007 animated film Surf's Up, the same title as this episode of Even Stevens.