Harry Stephen Ackerman (November 17, 1912 – February 3, 1991) was an American TV executive producer at Screen Gems, the television division of Columbia Pictures.From 1958 through 1974, under the command of Ackerman as Vice President of Production, Screen Gems delivered the classic sitcoms: Father Knows Best, Bachelor Father, Dennis the Menace, The Donna Reed Show, Hazel, Gidget, Bewitched, I Dream of Jeannie, The Flying Nun, The Monkees, and The Partridge Family.