A Few Educational Videos:
The University of Nottingham
Bibledex - A video about every book in the Bible
and Youtube Channel
Periodic Table of Videos - Video for every element in the periodic table
and Youtube Channel
Sixty Symbols - Videos about the symbols of physics and astronomy
and Youtube Channel
Test Tube - Behind the scenes of science
and Youtube Channel
TED: - ideas worth spreading
(Technology, Entertainment, Design)
How to find Free Educational Videos on the Web - from About.com