TNT has announced that Rizzoli & Isles has been renewed for Season 4. The crime drama will return in 2013 with another 15 episodes - matching the number ordered for its current third season. "Anchoring a new night in its third season, Rizzoli & Isles has proven itself to be a strong and enduring hit, not only in terms of the great storylines and performances, but also in terms of the show's stellar ratings," said network president Michael Wright. "We're thrilled that Rizzoli & Isles will continue to be a vital part of the TNT lineup."
(Source: TV by the Numbers)