Made several television films as Hart to Hart , Hart to Hart Returns ( 1993 ) , Hart to Hart : Home Is Where the Hart Is ( 1994 ) , Hart to Hart : Crimes of the Hart ( 1994 ) , Hart to Hart : Old Friends Never Die ( 1994 ) , Hart to Hart : Two Harts in 3\/4 Time ( 1995 ) , Hart to Hart : Harts in High Season ( 1996 ) and Hart to Hart : Till Death Do Us Hart ( 1996 ) . He would later be nominated for an Emmy Award for Best TV Actor for his performance in It Takes a Thief and for four Golden Globe awards for his role as Jonathan Hart in Hart to Hart .