TNT has given a third-season order to “Leverage.”The drama from Dean Devlin’s Electric Entertainment averaged 3.9 million viewers in its first season and 4.1 million in season two (both figures include live-plus-seven DVR usage). Cabler has ordered 15 episodes for the upcoming season, up from the 13 ordered for seasons one and two. Skein stars Timothy Hutton as the head of a team of con artists that use their grifting skills to shake down corporate bigwigs who played a part in the death of Hutton’s son. Devlin, John Rogers and Chris Downey are exec producers. TNT just ordered a second season of “Hawthorne,” and “Saving Grace” will end its run next summer as producer Fox Television Studios has opted to shut down production.