All Available Season All Season Season 1 Sep, 1964 36 episodes 8.3 Season 2 Sep, 1965 38 episodes 8.3 Season 3 Sep, 1966 33 episodes 8.4 Season 4 Sep, 1967 33 episodes 8.4 Season 5 Sep, 1968 30 episodes 7.8 Season 6 Sep, 1969 30 episodes 7.5 Season 7 Sep, 1970 28 episodes 0.0 Season 8 Sep, 1971 26 episodes 6.0
