http://www.pcgamer.com/2013/04/04/b...-2013-explained-by-company-ceo-mike-morhaime/
IBB: We were just told the other day that by numbers, StarCraft is bigger than the NHL. If you look just as the last month, we had several live broadcasts, MLG Dallas with record breaking concurrent viewers. Even the Heart of the Swarm release was really successful, with high viewership numbers.