DirecTV Sports Networks (formerly Liberty Sports Holdings) is a unit of DirecTV, a division of AT&T Inc., which consists of five regional sports networks: Root Sports Pittsburgh, Root Sports Rocky Mountain, Root Sports Northwest, Root Sports Utah, and Root Sports Southwest. The group was formed in 2008 when Liberty Media completed its purchase of four networks from News Corporation as a result of a stock swap for NewsCorp's stake in DirecTV.On May 4, 2009, DirecTV Group Inc.