|Burke continues his 'tale'.|
James Burke's series Connections and The Day The Universe Changed in the late 1970s and mid-1980s respectively were very successful at taking a historical and philosophical look at scientific change. The two series led to a Connections sequel (Connections 2) in 1994, with James Burke still at the helm of the project (and another, Connections 3 in 1997).
Series continued from Episode 19.
Here's episode 20 of Connections 2, Flexible Response.