MEMBER REVIEW: It starts with Huttons Unconformity, and alternates with the history of geology and the geological history of the planet. It is a familiar story with many of the same graphics. They do tell of the origin of diamond pipes, which is new. It is 2007, so there is less emphasis on global warming and they postulate more glaciers in the future, which is less possible now. It is a nice offering for an evening's viewing. Extra features: Inside the Volcano is a nice primer on volcanoes and an explanation of eruptions in history. Additional Scenes is material that was extra for the main program. These are definitely worth watching.