due to the nature of the medium of television. Postman argues that television, as a medium, innately sensationalizes all of its content, including content that he argues should not be sensationalized. Postman claims that due to the fact that television displays its content in a sensationalist manner, the audience is more likely to judge based on images, and less likely to judge based on the ideas at hand or critical thinking. Postman further criticizes the impact of the medium of television on society by arguing that television has now been put at the center of societal culture. He argues that television sensationalizes other elements of society that should not be sensationalized. He gives the examples of religion and education, stating that religious practices and methods of teaching in the classroom have become further sensationalized in a manner that is ultimately damaging to society. Building on this, Postman also claims that "in a culture in which one becomes a celebrity merely by appearing on television, the distinction between entertainment and anything else becomes odious". Sandra Ball-Rokeach and Melvin Defleur Sandra Ball-Rokeach and Melvin Defleur developed the "dependency theory " in 1976. This theory combines psychoanalysis with social system theory, system and leisure method, and the basic elements of use and satisfaction theory, and defines that media satisfies the needs of specific audiences in a specific way in a specific society. The use of the audience determines the influence of the media; Media-dependent audiences will be more affected. But too much emphasis on the function of the media, less attention to the effect. The progress of science and technology has led to the rapid development of media technology. The progress of media has brought about a series of social changes, a series of lifestyle changes brought by social media, and led to the dependence of some people on social media. When some popular social software fails, it will cause many netizens to be anxious and anxious. It can be said that to some extent, it reflects netizens' dependence on social media. The biggest characteristic of media dependency theory is that it discusses the influence and path of media communication from the interactive perspective of "audience, media and society", to make the theory of "media and all parts of the overall social structure" suitable for theoretical analysis at different levels. Theoretically, the dependence between media and individuals is two-way, but it is more