As Viacom viewership drops, more commericals are added, WSJ reports

As less viewers tune into some of Viacom's (VIAB) cable channels, the company has used a controversial method of maintaining ad revenue: they've added more commercials, reports the Wall Street Journal. Nielsen TV-research data shows that the media conglomerate's Nickelodeon and Comedy Central networks upped the amount of ad time they aired in the first half of 2012 by 9% from a year earlier, to a combined 1,901 hours. That followed a 7% rise in all of 2011 and a 4% rise in 2010, Nielsen found.