All Available Season All Season Season 1 Jan, 1974 53 episodes 0.0 Season 2 Jun, 1980 12 episodes 0.0 Season 3 Dec, 1981 56 episodes 0.0 Season 4 Mar, 1989 57 episodes 0.0 Season 5 Jan, 1994 67 episodes 0.0 Season 6 Aug, 2018 40 episodes 0.0
