It has been rumoured for a while that the organisation would be adding DotA 2 games to its lineup of programming, that includes everything from National Geographic documentaries, to dramas. However Starcraft has been its bread and butter for Esports recognition, as it's showing competitive Starcraft: Brood War games for the past five years or so.
Today of course, it broadcasts Starcraft II games too, thanks to its partnership with the GSL, which features some of - if not - the best players in the world. Back in 2010, it signed a three year contract with Blizzard in order to continue doing so. Presumably at some point this year that deal will be renewed. It's unknown if something similar was struck up with Valve, but it hasn't been mentioned anywhere.