The media company operates entertainment groups and cable networks, book publisher Simon & Schuster and local broadcasting stations.
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Now the company must come up with a vision for the future, and quickly.
The meeting could end the legal battle over Philippe Dauman's removal from National Amusements.
Controlling shareholder Sumner Redstone has been trying to get rid of the CEO for months.
"Discovery" to focus on a female lieutenant commander, set in pre-Kirk era.
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It could mean the end for the media mogul's time at Viacom.