Viacom (NASDAQ: VIA) (NASDAQ: VIAB) has recently been engaged in a dramatic succession battle with Sumner Redstone, whose family owns an 80% stake in the media giant through his holding company National Amusements. Redstone, who resigned as the executive chairman of Viacom and CBS (NYSE: CBS) in February, recently moved to oust Viacom CEO Philippe Dauman and his ally George Abrams from a seven-member trust which would acquire his voting stake after this death.