Season 1 NPO 2 , 1988 Season 2 NPO 2 , 1989 - 1990 Season 3 NPO 2 , 1990 - 1991 Season 4 NPO 2 , 1991 Season 5 NPO 2 , 1991 - 1992 Season 6 NPO 2 , 1992 - 1993 Season 7 NPO 2 , 1993 - 1994
, 1988