That is why Nielsen, an American firm that monitors television viewership, bought Telephia, a firm which tracks mobile-phone usage, last month

在上个月，一家名为Nielsen的美国收视率掌控公司收购了一家名为Telephia的跟踪调查移动电话习惯用法的公司，其原因就在于此。

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The viewership for live television broadcasts has generally been declining for years.

本文说的社交电视是我们相信的十大新兴科技展望之一。 电视直播节目的收视率多年来普遍下降。

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From the audience composition, the children's television programmes face a viewership of more than 30 percent of the groups audience.

从观众构成来看，儿童电视节目面对的是占收视群体30%以上的观众。

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That's the only scheduled day session, when television viewership will be at a minimum.

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Along with a wide television viewership opportunity, March Madness presents advertisers with the possibility of making a significant digital impact.

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Cable--both ad-supported and premium--now accounts for more than 55% of television viewership, up from only 10% in the early 1980s.

FORBES: Magazine Article