Monday, January 17 at 9 p.m. — The greatest rivalry in American paleontology.

Wednesday, January 6 at 8 p.m. — In this three-part series, host Alan Alda searches for the origin and nature of the “Human Spark.”

Tuesday, December 29 at 8 p.m. — On the 150th anniversary of Darwin’s “On the Origin of Species,” NOVA reveals answers to the riddles that Darwin couldn’t explain.

Tuesday, October 6 at 8 p.m. — The birth of Charles Darwin’s theory of evolution seen through the inspiration and personal sufferings of its originator.