One of the best television shows of the past year is undoubtedly Mike Flanagan’s Netflix horror series The Haunting of Hill House, which also not coincidentally happened to include one of the best episodes of television of the past year as well. Flanagan’s adaptation of the iconic Shirley Jackson novel plays out over the course of 10 episodes, in two different time periods, tracking the points of view of five different characters. That poses a challenge for any filmmaker, let alone a director who is helming all 10 episodes of a TV series himself. The key that makes …