Season 1 NBC , 1984 Season 2 NBC , 1985 Season 3 NBC , 1986 Season 4 NBC , 1987 Season 5 NBC , 1988 Season 6 NBC , 1989 Season 7 NBC , 1990 Season 8 NBC , 1991 Season 9 NBC , 1992 Season 10 NBC , 1993