Season 1 NBC , 1976 - 1982 Watch now Season 2 NBC , 1982 - 1983 Watch now Season 3 NBC , 1983 - 1984 Watch now Season 4 NBC , 1984 - 1985 Watch now Season 5 NBC , 1985 Watch now Season 6 NBC , 1986 Watch now Season 7 NBC , 1987 Watch now Season 8 NBC , 1988 Watch now Season 9 NBC , 1989 Watch now
, 1976 - 1982
, 1982 - 1983
, 1983 - 1984
, 1984 - 1985
