Season 1 of Planet Wissen premiered on September 30, 2002.

Season 2 of Planet Wissen premiered on January 6, 2003.

Season 3 of Planet Wissen premiered on January 14, 2004.

Season 4 of Planet Wissen premiered on January 24, 2005.

Season 5 of Planet Wissen premiered on February 6, 2006.

Season 6 of Planet Wissen premiered on January 31, 2007.

Season 7 of Planet Wissen premiered on October 20, 2008.

Season 8 of Planet Wissen premiered on February 2, 2009.

Season 9 of Planet Wissen premiered on January 13, 2010.

Season 10 of Planet Wissen premiered on January 3, 2011.

Season 11 of Planet Wissen premiered on February 1, 2012.

Season 12 of Planet Wissen premiered on January 21, 2013.

Season 13 of Planet Wissen premiered on January 6, 2014.

Season 14 of Planet Wissen premiered on January 9, 2015.

Season 15 of Planet Wissen premiered on January 18, 2016.

Season 16 of Planet Wissen premiered on January 17, 2017.

Season 17 of Planet Wissen premiered on January 15, 2018.

Season 18 of Planet Wissen premiered on January 16, 2019.

Season 19 of Planet Wissen premiered on January 22, 2020.

Season 20 of Planet Wissen premiered on January 18, 2021.

Season 21 of Planet Wissen premiered on January 14, 2022.

Season 22 of Planet Wissen premiered on January 9, 2023.