Season 1 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 4, 1990.

Season 2 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on January 3, 1991.

Season 3 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 4, 1991.

Season 4 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 3, 1991.

Season 5 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on December 26, 1991.

Season 6 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 9, 1992.

Season 7 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on December 30, 1992.

Season 8 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on July 30, 1993.

Season 9 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on January 6, 1994.

Season 10 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 30, 1994.

Season 11 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on July 7, 1994.

Season 12 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 10, 1994.

Season 13 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on January 4, 1995.

Season 14 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 3, 1995.

Season 15 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 4, 1995.

Season 16 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on January 4, 1996.

Season 17 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 25, 1996.

Season 18 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 2, 1996.

Season 19 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on December 24, 1996.

Season 20 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 31, 1997.

Season 21 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 6, 1997.

Season 22 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 8, 1998.

Season 23 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on September 25, 1998.

Season 24 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 31, 1999.

Season 25 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on September 27, 1999.

Season 26 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 27, 2000.

Season 27 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 4, 2000.

Season 28 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on January 1, 2001.

Season 29 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 5, 2001.

Season 30 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 4, 2001.

Season 31 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 27, 2002.

Season 32 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 3, 2002.

Season 33 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 24, 2003.

Season 34 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on September 18, 2003.

Season 35 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on March 29, 2004.

Season 36 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on September 20, 2004.

Season 37 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on April 12, 2005.

Season 38 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 14, 2017.

Season 39 of Yonimo Kimyou na Monogatari Tokubetsuhen premiered on October 4, 2005.