After the war, Gilbert enrolled at the
Royal Academy of Dramatic Art, and he initially aspired to direct films. He succeeded Michael Mills as the
BBC's Head of Comedy from 1973 to 1977. Gilbert was appointed as the BBC's Head of Light Entertainment in 1977, in succession to
Bill Cotton, remaining in the post and with the BBC until 1982. Subsequently, he worked freelance with
Thames Television, until retiring at age 75. ==Personal life and death==