Season 1 of Happy Toon premiered on 2010-07-02.

Season 2 of Happy Toon premiered on 2011-01-01.

Season 3 of Happy Toon premiered on 2011-07-16.

Season 4 of Happy Toon premiered on 2012-01-01.

Season 5 of Happy Toon premiered on 2012-08-04.

Season 6 of Happy Toon premiered on 2013-04-27.

Season 7 of Happy Toon premiered on 2014-01-06.

Season 8 of Happy Toon premiered on 2014-05-30.

Season 9 of Happy Toon premiered on 2015-08-07.

Season 10 of Happy Toon premiered on 2016-07-16.

Season 11 of Happy Toon premiered on 2017-08-22.

Season 12 of Happy Toon premiered on 2019-07-13.

Season 13 of Happy Toon premiered on 2020-03-01.

Season 14 of Happy Toon premiered on 2020-10-10.

Season 15 of Happy Toon premiered on 2021-08-03.

Season 16 of Happy Toon premiered on 2021-11-19.

Season 17 of Happy Toon premiered on 2022-05-20.

Season 18 of Happy Toon premiered on 2022-12-09.

Season 19 of Happy Toon premiered on 2023-09-26.

Season 20 of Happy Toon premiered on 2023-12-20.