Season 1 of Tosh.0 premiered on June 4, 2009.

Season 2 of Tosh.0 premiered on January 13, 2010.

Season 3 of Tosh.0 premiered on January 11, 2011.

Season 4 of Tosh.0 premiered on January 31, 2012.

Season 5 of Tosh.0 premiered on February 5, 2013.

Season 6 of Tosh.0 premiered on February 18, 2014.

Season 7 of Tosh.0 premiered on February 17, 2015.

Season 8 of Tosh.0 premiered on February 9, 2016.

Season 9 of Tosh.0 premiered on February 7, 2017.

Season 10 of Tosh.0 premiered on March 27, 2018.

Season 11 of Tosh.0 premiered on March 19, 2019.

Season 12 of Tosh.0 premiered on September 15, 2020.