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60年前电视刚刚步入家庭的时候,美国的所有电视台只能一次播送一档电视节目:《享利·布林克里报道》,《幸存者》或《六十分钟》。但这已经成为历史。现在我们迎来了数字电视时代。模拟单信道电视将很快像上世纪50年代的烤箱一样成为古老陈旧的代名词。自1996年新通信法颁布实施以来,美国所有的电视台都可以同时播放6个频道的电视节目。当然,公众的受益只是慢慢显现出来,但似乎一夜之间“多频播放”就已经成了电视圈里的人们经常挂在嘴边,出现频率最高的新词儿了。北卡罗来纳州的WRAL电视台是数字电视的先行者。以WRAL为例,去年WRAL通过其新开播的数字电视新闻频
60 years ago, when television was just entering families, all television stations in the United States were allowed to broadcast only one television program at a time: “Report of Henry Brinkley,” “Survivor,” or “Sixty Minutes.” But this has become history. Now we ushered in the era of digital television. Analog mono-channel TVs will soon become as old-fashioned as the 1950s ovens. Since the promulgation of the new communication law in 1996, all television stations in the United States can simultaneously broadcast television programs on 6 channels. Of course, the public benefit is only slowly showing up, but it seems overnight overnight, “multi-frequency play” has become the most frequent new word in the television circle people often talked about. WRAL television in North Carolina is a pioneer in digital television. Take WRAL as an example, last year WRAL passed its newly launched digital TV news channel