Hot on the heels of the series premiere, TNT is already rolling in the black gold that is their revival of Dallas. The series has been averaging about 6.9 million viewers in its first season this summer, and that’s after decades away from Southfork and the familiar characters from the classic series. Now with a larger family, the show is back with a vengeance and TNT has decided to keep it around for a second season with a 15-episode order just announced, slated to air sometime in 2013. But that’s not all. TNT also brings back the female detective duo Rizzoli & Isles for a fourth season next year. More details, including full press releases for both renewals, after the jump.