It's a Knockout Seasons

Season 17 1982

15 episodes - May 28, 1982

Season 16 1981

15 episodes - May 29, 1981

Season 15 1980

17 episodes - May 9, 1980

Season 14 1979

17 episodes - May 11, 1979

Season 13 1978

16 episodes - Apr 21, 1978

Season 12 1977

16 episodes - Apr 22, 1977

Season 11 1976

16 episodes - May 21, 1976

Season 10 1975

15 episodes - May 23, 1975

Season 9 1974

13 episodes - May 3, 1974

Season 8 1973

14 episodes - May 18, 1973

Season 7 1972

14 episodes - May 19, 1972

Season 6 1971

14 episodes - Apr 21, 1971

Season 5 1970

14 episodes - Apr 30, 1970

Season 4 1969

11 episodes - May 14, 1969

Season 3 1968

13 episodes - May 12, 1968

Season 2 1967

12 episodes - May 14, 1967

Season 1 1966

7 episodes - Aug 7, 1966

Specials 1970

35 episodes - Dec 26, 1970