Comedian Garry Shandling is remembered for creating two ground-breaking TV shows: “It’s Garry Shandling’s Show” and “The Larry Sanders Show.” He was also a key mentor to Hollywood writer and director Judd Apatow (“The 40-Year-Old Virgin”; “Knocked Up”). After Shandling’s death in 2016, Apatow gained access to his mentor’s diaries. He draws upon them for his two-part HBO documentary “The Zen Diaries of Garry Shandling.” (Source: Pure Nonfiction)