Here's a brief ratings summary per TV Guide.com
Freshman drama The Carrie Diaries, a prequel to Sex and the City, drew 1.61 million and a 0.6 in the adults 18-to-49 demographic for its series premiere. The season finale dipped to 1 million and a 0.4 rating in its finale. Nikita, meanwhile, drew 1.03 million in its latest outing. Its third season, which has averaged 1.14 million viewers so far, will close on May 17.
Both series will join previously picked up series Beauty and the Beast, Hart of Dixie, Supernatural, The Vampire Diaries and Arrow.
Are you happy that The Carrie Diaries and Nikita are renewed?