New York, NY – March 26, 2009 -- MTV Games, a part of Viacom’s MTV Networks, (NYSE: VIA, VIA.B), Harmonix, the leading developer of music-based games, and distribution partner Electronic Arts Inc. (NASDAQ: ERTS), today announced that the Rock Band® franchise has officially surpassed $1 billion dollars in North American retail sales in 15 months, according to The NPD Group.