I write about documentaries on streaming services a lot, and it's no surprise that the lion's share of them are on Netflix these days. But consider this a stern reminder that HBO was the king of compelling, premium documentaries since before Netflix was stuffing DVDs in the mail. From 1996's Paradise Lost: The Child Murders at Robin Hood Hills to the more recent surfing stunner, 100 Foot Wave series (both Emmy winners), you can still find a truckload of excellent docs on HBO Max.