Season 1 of Happy Toon premiered on July 2, 2010.

Season 2 of Happy Toon premiered on January 1, 2011.

Season 3 of Happy Toon premiered on July 16, 2011.

Season 4 of Happy Toon premiered on January 1, 2012.

Season 5 of Happy Toon premiered on August 4, 2012.

Season 6 of Happy Toon premiered on April 27, 2013.

Season 7 of Happy Toon premiered on January 6, 2014.

Season 8 of Happy Toon premiered on May 30, 2014.

Season 9 of Happy Toon premiered on August 7, 2015.

Season 10 of Happy Toon premiered on July 16, 2016.

Season 11 of Happy Toon premiered on August 22, 2017.

Season 12 of Happy Toon premiered on July 13, 2019.

Season 13 of Happy Toon premiered on March 1, 2020.

Season 14 of Happy Toon premiered on October 10, 2020.

Season 15 of Happy Toon premiered on August 3, 2021.

Season 16 of Happy Toon premiered on November 19, 2021.

Season 17 of Happy Toon premiered on May 20, 2022.

Season 18 of Happy Toon premiered on December 9, 2022.

Season 19 of Happy Toon premiered on September 26, 2023.

Season 20 of Happy Toon premiered on December 20, 2023.