Broadcasting & Cable: Viacom CEO Philippe Dauman has asked a judge in Massachusetts to order that the company’s controlling shareholder, Sumner Redstone, submit to a mental examination by Aug. 17. Dauman and another Viacom director, George Abrams, filed suit to invalidate an effort to remove them as directors of the Redstone family holding company, National Amusements, and as trustees of the trust that will control National Amusements after Redstone dies or is declared incompetent.