2010 | 13 Episodes

Season 1 of Parenthood premiered on March 2, 2010.

2010 | 22 Episodes

Season 2 of Parenthood premiered on September 14, 2010.

2011 | 18 Episodes

Season 3 of Parenthood premiered on September 13, 2011.

2012 | 15 Episodes

Season 4 of Parenthood premiered on September 11, 2012.

2013 | 22 Episodes

Season 5 of Parenthood premiered on September 26, 2013.

2014 | 13 Episodes

Season 6 of Parenthood premiered on September 25, 2014.