Scandal’s third-season debut topped Nielsen’s first weekly Twitter TV ratings, bagging about 713,000 tweets reaching a Twitter audience of 3.7 million. (On TV, the third season debut of ABC’s Washington soap clocked an average of 10.5 million viewers.) Miley Cyrus came in second and third in Nielsen’s Twitter ratings report. At No. 2, her MTV documentary,Miley: The Movement ginned up 142,000 tweets, reaching about 3.2 million on Twitter. That was followed by Saturday Night Live, on which Cyrus played host and music act, which generated nearly 176,000 tweets reaching 3.146 million people on Twitter. These numbers come the same day Twitter officially unveiled the ratings measure, which considers the number of people who read TV-related tweets, not just the number of writers.