Fire up the fan fiction, as Rizzoli & Isles has been renewed for a sixth season. The detective procedural with subtle lesbian undertones (but no actual lesbian romance) will return to TNT next summer after its fifth season wraps up in March. The show has been a consistent hit for TNT; it was the most watched basic cable series of the summer in 2014 and has ranked as a top five cable series throughout its run. But with TNT looking to bring more of an edge to its original programming, fans were nervous about the future of their beloved “Rizzles” friendship.