- Future clouded at CBS - The court fight brought into the open the power struggle between Redstone and CBS chief Les Moonves. CBS had claimed that Redstone was seeking to force a merger with Viacom -- which is also controlled by the family and which was split from CBS in 2006 -- on terms that were unfavorable to public CBS shareholders. The Redstone holding company controls about 10 percent of the equity of CBS but has nearly 80 percent of the voting power through a special share class. NAI has disputed the claim by CBS that it wants a merger without the support of both firms. But the open clash is likely to lead to major shakeup at CBS in the event of a merger with Viacom. CBS shares sank around four percent following the ruling. "Ultimately, we believe it is hard to imagine Moonves having a role in the combined company," BTIG Research analyst Richard Greenfield said in a note to clients this week.