Season 1 of CNN Heroes premiered on December 6, 2007.

Season 2 of CNN Heroes premiered on November 27, 2008.

Season 3 of CNN Heroes premiered on November 26, 2009.

Season 4 of CNN Heroes premiered on November 25, 2010.

Season 5 of CNN Heroes premiered on December 11, 2011.

Season 6 of CNN Heroes premiered on December 2, 2012.

Season 7 of CNN Heroes premiered on December 1, 2013.

Season 8 of CNN Heroes premiered on December 7, 2014.

Season 9 of CNN Heroes premiered on December 6, 2015.

Season 10 of CNN Heroes premiered on December 11, 2016.

Season 11 of CNN Heroes premiered on December 17, 2017.

Season 12 of CNN Heroes premiered on December 9, 2018.

Season 13 of CNN Heroes premiered on December 8, 2019.

Season 14 of CNN Heroes premiered on December 13, 2020.

Season 15 of CNN Heroes premiered on December 12, 2021.

Season 16 of CNN Heroes premiered on December 11, 2022.