Steve Paulson introduces us to Mark Oliver Everett, better known as "E" - lead singer of the Eels, and son of Hugh Everett, the man who came up with the theory of parallel worlds. Mark never really knew his father, but served as the narrator for a documentary about him ("Parallel Worlds, Parallel Lives") produced by the BBC for release in the U.S. by PBS in the WGBH NOVA series. We hear Mark's music, excerpts from the film, and Mark's reflections on his father's life and what they share. Mark is also the author of a memoir, "Things the Grandchildren Should Know".