HBO, 9:00 p.m. ET
How weird is it that film director and screenwriter Oliver Stone has two new nonfiction TV series on, at competing cable networks, the same night each week? But he does. Stone’s Witness presents a new installment this week, called Libya. Last year’s overthrow of Moammar Gadhafi is covered by photojournalist Michael Christopher Brown, who’s covering a conflict so dangerous it claimed the lives of some of Brown’s colleagues.