Sorry, but there is no Viacom sell-off. Look at the volume and see that it is well below the average volume (granted the day is not over). Also look at the 5 day chart. Some investors might see this as an opportunity! Controversy = increased viewership = increased rates. Next week is season's premier week, is it not?
Controversy means corporate advertisers will instruct their media buying agencies to avoid controversial programming. Ratings created by controversy are not sought out by corporate advertisers.