Season 1 CBS , 1960 Season 2 CBS , 1961 - 1962 Season 3 CBS , 1962 - 1967 Season 4 CBS , 1963 - 1964 Season 5 CBS , 1965 Season 6 CBS , 1966 Season 7 CBS , 1966 - 1967 Season 8 CBS , 1967 - 1968 Season 9 CBS , 1968 - 1969 Season 10 CBS , 1969 - 1970 Season 11 CBS , 1970 - 1971 Season 12 CBS , 1971 - 1972 Season 13 CBS , 1973 Season 14 CBS , 1974 Season 16 CBS , 1976 Season 19 CBS , 1979 Season 21 CBS , 1981 - 1983 Season 23 CBS , 1982 Season 24 CBS , 1983