Do you watch YouTube instead of TV, rather than alongside it? Like it or not, marketers will soon have a better shot at targeting you. YouTube has revealed that it will soon give advertisers the chance to target viewers who either watch little in the way of conventional TV or watch YouTube on TV. To begin with, it's introducing an AdWords category called "light TV viewers" -- that is, cord cutters who watch most or all of their video online. In the months ahead, YouTube will also give a range of advertisers the option of targeting TV screens, not just mobile devices and PCs.