Season 1 ABC , 1986 Watch now Season 2 ABC , 1986 - 1987 Watch now Season 3 ABC , 1987 - 1988 Watch now Season 4 ABC , 1988 - 1989 Watch now Season 5 ABC , 1989 - 1990 Watch now Season 6 ABC , 1990 - 1991 Watch now Season 7 ABC , 1991 - 1992 Watch now Season 8 ABC , 1993 Watch now