I have to correct you here. What Goggle actually sells is you and your information so that personalized ads can be targeted directly to you. That's why they scan your email and want you to disclose all of that nice, personal information in Google+.
It's the same with broadcast television. You aren't the customer buying the product (TV shows) with your watching the commercials the price. The advertiser is the customer buying the product and the product is you. The TV show is part of the Costs of Goods Sold.