Season 1 Nickelodeon , 1991 Watch now Season 2 Nickelodeon , 1992 Watch now Season 3 Nickelodeon , 1993 Watch now Season 4 Nickelodeon , 1994 Watch now Season 5 ABC , 1996 - 1997 Season 6 ABC , 1997 Season 7 ABC , 1998 - 1999 Season 8 Nickelodeon , 1999 - 2000