This second episode, adhering very closely to the outline and content of Carl Sagan’s original program, brings the concept of evolution front and center. It’s another strong hour for the series – and, sad to say, probably as controversial today as when Sagan discussed the topic so matter-of-factly 30 years ago. Astrophysicist Neil deGrasse Tyson hosts. And let's see how much of this episode gets shown by the Fox affiliate in Oklahoma City...