Searxng/Bosch Start of Watch tv Celebrity Explore rookie Harry Bosch's early days in 1991 L.A., as a major heist and police corruption forge the detective he'll become. A Bosch prequel series. April 19, 2026 AceShowbiz - Bosch is set to return to television with a fresh perspective, diving back to the early days of its titular character. The new series, titled Bosch: Start of Watch, is a prequel that explores the beginnings of Harry Bosch's career as a rookie LAPD officer in 1991 Los Angeles.