They’re the best-known protest organization against graphic TV sex and violence. Even if you don’t know their name, you’ve seen the results of their efforts. Those headlines about that long Sons of Anarchy sex montage? The furor over ABC’s Charlie Brown repeat leading into a Scandal sex scene? The content protests against Fox’s Family Guy, VH-1’s Dating Naked and CBS’ Stalker? All the work of the Parents Television Council, a 19-year-old oft-outraged Los Angeles-based organization that’s probably the best known remaining anti-indecency group around.