Season 1 CBS , 1952 - 1953 Watch now Season 2 CBS , 1953 - 1954 Watch now Season 3 CBS , 1954 - 1955 Watch now Season 4 CBS , 1955 - 1956 Watch now Season 5 CBS , 1956 - 1957 Watch now Season 6 CBS , 1966 - 1967 Season 7 CBS , 1967 Season 8 CBS , 1968 - 1969 Season 9 CBS , 1969 - 1970 Season 10 CBS , 1973 - 1978 Season 11 CBS , 1958 - 2004