2005 | 30 Episodes

Season 0 of Medium premiered on November 21, 2005.

2005 | 16 Episodes

Season 1 of Medium premiered on January 3, 2005.

2005 | 22 Episodes

Season 2 of Medium premiered on September 19, 2005.

2006 | 21 Episodes

Season 3 of Medium premiered on November 15, 2006.

2008 | 16 Episodes

Season 4 of Medium premiered on January 7, 2008.

2009 | 18 Episodes

Season 5 of Medium premiered on February 2, 2009.

2009 | 22 Episodes

Season 6 of Medium premiered on September 25, 2009.

2010 | 13 Episodes

Season 7 of Medium premiered on September 24, 2010.