National Amusements, a company run by 95-year-old billionaire media magnate Sumner Redstone, and his daughter Shari, is the controlling shareholder of both CBS and Viacom. The Redstones have sought to merge CBS and Viacom. CBS is fighting the proposed merger. That’s the back-story which many of our readers probably already know. But this is one good (or perhaps “sad” is a better word) corporate soap opera. Like all such shows, this one has many layers and several “colorful” characters.