Just before Thanksgiving, Sumner Redstone's ex-girlfriend filed court papers asking to be put in charge of his healthcare, saying that the 92-year-old mogul is mentally incompetent.

Sumner Redstone's Mental Competency & the Fate of Viacom

<p>Kim Masters, host of KCRW&rsquo;s The Business, breaks down Hollywood's top stories.</p>

TV & Film

Kim Masters, host of KCRW’s The Business, breaks down Hollywood's top stories.

<p>Kim Masters, host of KCRW’s The Business, breaks down Hollywood's top stories.</p>

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Sumner Redstone's Mental Competency & the Fate of Viacom

Sumner Redstone's Mental Competency & the Fate of Viacom

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