Season 0 of Grimm premiered on October 10, 2011.

Season 1 of Grimm premiered on October 28, 2011.

Season 2 of Grimm premiered on August 13, 2012.

Season 3 of Grimm premiered on October 25, 2013.

Season 4 of Grimm premiered on October 24, 2014.

Season 5 of Grimm premiered on October 30, 2015.

Season 6 of Grimm premiered on January 6, 2017.