Season 1957 ABC , 1957 Season 1958 ABC , 1958 Season 1959 ABC , 1959 Season 1960 ABC , 1960 Season 1961 ABC , 1961 Season 1962 ABC , 1962 Season 1963 ABC , 1963 Season 1964 ABC , 1964 Season 1965 ABC , 1965 Season 1966 ABC , 1966 Season 1967 ABC , 1967 Season 1968 ABC , 1968 Season 1969 ABC , 1969 Season 1970 ABC , 1970 Season 1971 ABC , 1971 Season 1972 ABC , 1972