Season 17 (1985-1986) <br />Season 21 (1989-1990) <br />Season 22 (1990-1991) <br />Season 23 (1991-1992) <br />Season 24 (1992-1993) <br />Season 26 (1994-1995) <br /><br />Series funding provided by: Corporation for Public Broadcasting <br />PBS Viewers Like You <br />United States Department of Education <br />Ford Foundation <br />Carnegie Corporation of New York
