May 4, 2008 (400th Episode)
Season 18, episode 20 of America's Funniest Home Videos (1990) · 2008-05-04
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Episode Summary
"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.