I think that Anime release groups are also a lot less "regulated" than US TV rip scene. For animes, you can just ask your friends to help you translate an uncovered anime in your country, you get the "raw" from japan and you sub. For TV, they have rules as complicated as this: http://scenerules.irc.gs/n.html?id=2011_TV_X264_u2.nfo if they don't follow them, they're excluded from the scene.