Hosted by the engaging Dr. Neil deGrasse Tyson, director of the Hayden Planetarium at the American Museum of Natural History, Origins consists of four one-hour episodes. The first focuses on the initial billion years of Earth history, research into the emergence of water (which appeared surprisingly early, as it turns out, and could have been delivered by comets) and the birth of the moon. The second show concerns hardy, single-cell organisms on Earth developing, in some quite inhospitable places, into complex life forms, while the third covers the Big Bang and the final installment looks at theories involving extraterrestrial life. If the topics sound familiar, their presentation is always fresh, dynamic, and thoroughly accessible. Watching Origins would be a great, context-providing preface to the study of a number of niche subjects, including geology, physics, biology, and much else. An invaluable production. --Tom Keogh