One of my favorite Passover related videos on YouTube is an instructional video in Japanese teaching how to cut a matzah perfectly in half. Check it out:
Of course, there's also the creative JibJab "Matzah" video created by Smooth-E (Eric Schwartz). And I would be remiss if I didn't recommend the cute video of Rabbi Paul Freedman and his wife Nina rapping from their Jerusalem apartment about Passover to the tune of Snoop Dogg's "Gin 'n Juice".
Wishing everyone a chag sameach - a joyous Passover holiday!