New York – Nielsen has announced the commercial launch of Nielsen Twitter TV Ratings, which measures not only “authors”—the number of people tweeting about TV programmes—but also the much larger “audience” of people who actually view those Tweets. Initial analysis of Nielsen Twitter TV Ratings reveals that the Twitter TV audience for an episode is, on average, 50 times larger than the authors who are generating Tweets. For example, if 2,000 people … [Read more...] about Nielsen measures TV-specific activity on Twitter