8:29

Kids Show & Tell on Letterman, November 13, 1991

10:57

David Letterman Kid Scientist Volume 6 2009

8:14

David Letterman Daniel Tammet Mathematics Genius Prodigy | Free slideshow @ www.j.mp/BharatanMaths

9:26

New Halloween Costumes on Letterman, October 29, 1986

7:42

Kid Inventors

12:24

1983 David Letterman Stupid Human Tricks

5:52

Lulu Cash Gibson (Child Genius) on Letterman, December 15, 1989

7:55

Kid Inventors on Letterman, February 20, 1991