Digital TV has started as a free broadcast medium as well.
数字电视系统也是由信号广播发起。
Or are they encouraged to think of it as yet another broadcast medium?
还是把它当作另一种传播媒介？
They get away with this because broadcast television is still unchallenged as a mass medium.
广告客户受损不多，因为广播电视作为大众媒体的地位仍然是不可挑战的）。
They get away with this because broadcast television is still unchallenged as a mass medium.
广告客户受损不多，因为广播电视作为大众媒体的地位仍然是不可挑战的）。
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