I don't get it
So they listen in on background adverts, something which I have no control over and haven't actually chosen through any input of my own, and decide to use that and only that information to target me for more advertising? What could possibly be the point of this? They're not choosing adverts based on anything I've done, they're choosing them based on what some other advertising people think people watching TV at this time might possibly be interested in. They could achieve exactly the same effect with far less cost and legal issues by simply looking at a clock.