It's in an embryonic stage but it's possible that in the not too distant future many of the ads funneled into your TV will be addressable to you, personally – or at least a good guess at who you are and what you're interested…what's relevant to you.
Rather than bombarding millions of TV viewers with the same ads for things many of them may not be looking to buy, marketers could in the next two to three years send different ads to different households — making certain, for example, that Procter & Gamble wouldn't have to pay for Pampers ads watched by a couple with no wee tykes and General Motors wouldn't have to show ads for its Hummer vehicles to a house full of Prius enthusiasts.