用英语写一篇关于电视积极和消极影响的文章

Numerous educators have envisioned television's possiblities as an instructional tool and have sought acknowledgement throughout the industrialized world. Educational television in the developing world has also included training which directly affects the quality of life of its audiences. For example, in areas where televised broadcasts are very low, audiences may gather at community centers to view programs on hygiene, literacy, child care and farming practises. In this respect, educational television equips the group with matter-of-fact information to improve living standards. Such broadcasts best exemplify the global aims of educational television.

However, television broadcasting evolved as a profit-making entity. Within this system, efforts to employ the medium for educational purposes have always struggled to stay alive, nearly besieged by the overflow of entertainment programs intended to attract audiences to commercials that have educated viewers in another w