1. A Victim of GravityAired: Sep 27, 1975The Tokens harmonize Newton's theory that gravity keeps things down.
3. The Body MachineAired: Oct 18, 1975A trip that makes understanding the digestive system easy to swallow.
4. Do the CirculationAired: Feb 13, 1976An energetic, enthusiastic look at the cardiovascular system.
5. The Energy BluesAired: Mar 13, 1976Thirty years later, the world is still singing the "Energy Blues."
9. Mother NecessityAired: Jul 3, 1976A run-through of the needs that inspired some of America's most influential i...
10. Three-Ring GovernmentAired: Mar 6, 1979A kid who's into circuses finds it easy to remember how the branches of the U...
11. I'm Gonna Send Your Vote to CollegeAired: Aug 27, 2002No one gets to be President without graduating from the Electoral College!