Why do people use commercials?

Commercials whether on TV, on radio of in the cinema are for the advertiser an opportunity to sell their product to an audience and for the company showing the commercial an opportunity to make money for showing or broadcasting that commercial at a certain time during a show. The advertiser will look at what is be shown or transmitted and bid for a very popular programme slot. In some cases this can run into millions of dollars over a period of time. It the advert gathers customer interest and sales increase then the point of the bid is made. It an be a very lucrative business for the right product.