On television, Stewart's Director credits include the syndicated series, Top Secret (1954–55), in which he costarred with the young Gena Rowlands, and a notable episode of the TV series The Twilight Zone, "Little Girl Lost" (1962). He was host and narrator of the syndicated series Deadline (1959–61) and appeared in episodes of The Ford Theatre Hour, Suspense, Playhouse 90, Alcoa Theatre, Alfred Hitchcock Presents, The Asphalt Jungle, Perry Mason, Dr. Kildare, Mannix, Mission Impossible, The Name of the Game ("L.A. 2017"), McMillan & Wife, Columbo, The Rockford Files, Lou Grant and Remington Steele, among many other TV series.