Returning to Southfork for the new TNT version of “Dallas” was an easy decision for Larry Hagman, Patrick Duffy, and Linda Gray — J.R., Bobby, and Sue Ellen Ewing, respectively. “It just seemed natural to catch up with the Ewing family and see what had happened in their lives,” says co-executive producer Cynthia Cidre. Hagman, Duffy, Gray, Cidre, and other members of the cast chatted with reporters earlier this year at the Television Critics Association press tour.