Last year was bruising for Viacom Chief Executive Philippe Dauman.
Viacom's market value plummeted 45% in 2015 amid investor concerns about tumbling television ratings and consumers scaling back their pay-TV bundles.
Paramount Pictures, Viacom's Melrose Avenue film studio, had another tough year at the box office. Some investors and analysts suggest that Paramount should be sold because it could be worth more to a competitor or a potential buyer from China.
The boardroom has had its share of drama too. Viacom...