My Darkest Secret
Look closely at this excerpt from an episode of Nickelodeon's game show LEGENDS OF THE HIDDEN TEMPLE, and you will see me doing an incredible impression of The Nerdiest 12-Year-Old in the History of Western Civilization.
EDIT: I've added another, slightly sharper copy to help your investigations.
The Medal of Sir Edmund Hillary Part 1 by jpatterson22
FURTHER EDIT: Here's a hint. Four words: Crowd shot, fanny pack.
Did you find me? God I hope not. I should bury all existing footage of this thing in the Hidden Temple.