电视新闻代表了即时传播的发展方向,今天人类能够对世界发生的重大事件形成全球性关注的潮流,很大程度上是电视的直播促成的。在美国,电视新闻直播已经成为常态的节目播出方式和报道方式,所产生的影响已经变成了一种广泛的社会行为。梳理美国电视新闻直播的历程并解码其引发的 Television news represents the development direction of instant communication. Today, mankind is able to create a global trend of concern for major events in the world. It is largely mediated by the live television broadcast. In the United States, television newscasts have become the norm in how programs are broadcast and reported, and the impact has become a widespread social activity. Combine the story of the U.S. television newscast and decode the trigger