This week on the PBS series "Nova", the show veered off into more of a "Masterpiece Theater" genre, showing a two-part movie "Darwin's Darkest Hour." Henry Ian Cusick stars as Charles Darwin, looking still very much like island-Des with the longer Victorian period hair, but without the Scottish accent. Cusick plays the fatherly Darwin well, who in this stage of his life before his notes and ideas were published, balanced his passion for studying nature with family life. The 2-hour drama is interesting, but a bit heavy on the exposition. Much of Darwin's formative years of study are shown in flashbacks during talks with his wife. All in all though, a good venue for Desmond fans to see Cusick in another role.