In Viacom's case, its descent has been accelerated by factors unique to the company, including concerns about a potential power struggle between CEO and chairman Philippe Dauman and Shari Redstone, daughter of Viacom's controlling shareholder Sumner Redstone. When you strip away the impact of uncertainty about control over Viacom's assets, however, the company is suffering from the same factors that have pushed down both Disney and Time Warner—namely, fear that these media and entertainment giants are losing control over the future of broadcasting. Star Wars knocks Avatar out of No. 1 box office spot Bernstein Research analyst Todd Juenger put this into words in a research report on Viacom, in which he said the company's traditional hold on youth markets—through channels like Nickelodeon and MTV—is in danger. "We continue to hold the view that the old business of serving kids/teens with linear TV networks is doomed," he wrote.