In fact, weather, natural disasters, liesure topics, health and medicine are not the core for network news. The media are not neutral, unobtrusive social agents providing simple entertainment or news, they are extensive and persuasive. Research shows that Americans watched an average of four hours of television a day. If you Include radio and newspapers, the influence is substantially increased. The world as they believe it exists, based on their social interactions with other people.
People then act in accordance with their views of reality and society.
Through our socialization, information from these is mixed, allowing us to create our reality. This reality contains things we believe to be true, things we believe to be happening, our values, opinions, and beliefs. Now, the importance of the sources of information vary amoung people, but in general, research has indicated that the media is taking precedence over the other three. Thus providing us with powerful frames of reference in which to view the world, shape opinions, beliefs, and possibly, behaviors. The main emphasis of advertising is to influence us.