America's Funniest Home Videos: Season 18, Episode 20

18 - 20: May 4, 2008 (400th Episode)

"America's Funniest Home Videos," the longest-running primetime show in ABC history, celebrates another landmark, its 400th episode. Highlights include wedding mishaps, college kids making a homemade water slide and sliding through dorm halls, and a little girl who makes a big mess with chocolate powder.