The drama is set in the 1970s and involves the Knapp Commission investigations. The Knapp era gave rise to the story of patrolman Frank Serpico, whose revelations about corruption within the department were made into a popular book and film.Milch co-created and oversaw “NYPD Blue” for many a season. The same story reveals that the recent dismantling of the “Deadwood” sets would have no bearing on any plans to make “Deadwood” TV-movies. Learn why via James Hibberd’s TV Week story here.