Say what you will about television audiences deserting broadcast television and switching to cable instead, a new analysis of Nielsen data indicates that broadcasters have little to worry about -- at least at the moment. As reported by, of the 100 top-rated television shows among 18-49-year-old viewers over the last season that ended last week, 89 were carried by the broadcast networks. Among total adults, 93 were. Of the 11 cable shows to land in the top 100 among 18-49-year-olds, all were sports-related and all of them aired on ESPN or TNT.