Season 0 of Kölner Treff premiered on July 31, 2015.

Season 1 of Kölner Treff premiered on January 25, 1976.

Season 2 of Kölner Treff premiered on January 8, 1977.

Season 3 of Kölner Treff premiered on February 18, 1978.

Season 4 of Kölner Treff premiered on February 11, 1979.

Season 5 of Kölner Treff premiered on March 17, 2006.

Season 6 of Kölner Treff premiered on February 9, 2007.

Season 7 of Kölner Treff premiered on January 18, 2008.

Season 8 of Kölner Treff premiered on January 2, 2009.

Season 9 of Kölner Treff premiered on January 8, 2010.

Season 10 of Kölner Treff premiered on February 11, 2011.

Season 11 of Kölner Treff premiered on January 13, 2012.

Season 12 of Kölner Treff premiered on January 11, 2013.

Season 13 of Kölner Treff premiered on January 10, 2014.

Season 14 of Kölner Treff premiered on January 16, 2015.

Season 15 of Kölner Treff premiered on January 15, 2016.

Season 16 of Kölner Treff premiered on January 20, 2017.

Season 17 of Kölner Treff premiered on January 26, 2018.

Season 18 of Kölner Treff premiered on January 11, 2019.

Season 19 of Kölner Treff premiered on January 3, 2020.

Season 20 of Kölner Treff premiered on January 8, 2021.

Season 21 of Kölner Treff premiered on January 14, 2022.

Season 22 of Kölner Treff premiered on January 13, 2023.