The new Dallas is a success for TNT so the cable channel has renewed the TV series for a second season. There are 10 episodes in the first season and they’ve ordered 15 for season two. They’re expected to debut in 2013.

Four episodes of season one have aired so far and the Dallas’ ratings have averaged a 1.4 in the 18-49 demographic with 5.64 million total viewers. Though the show is still a big hit for TNT, the ratings have declined each week since the premiere. The first season will finish airing on Wednesday, August 8th.

Here’s the press release about season two:

Ewings to Return to Southfork as TNT Orders Second Season of Hit Series “Dallas,” From Warner Horizon Television

Basic Cable’s #1 New Series Averaging 6.9 Million Viewers

TNT has renewed the hit series Dallas for a second season. The Warner Horizon Television-produced drama, which ranks as basic cable’s #1 new series, is currently averaging 6.9 million viewers in its first season. TNT has ordered 15 episodes for its second season, which is slated to air in 2013.

Currently airing Wednesdays at 9 p.m. (ET/PT), TNT’s Dallas marks the return to Southfork of J.R., Bobby and Sue Ellen Ewing, who bring with them their arsenal of secrets, schemes and betrayals. This time, they’re joined by the next generation of Ewings, who take ambition and deception to a new level. The series stars Josh Henderson as John Ross, the son of J.R. and Sue Ellen Ewing; Jesse Metcalfe as Christopher, Bobby’s adopted son; Jordana Brewster as Elena Ramos, John Ross’ girlfriend; Julie Gonzalo as Rebecca Sutter, Christopher’s wife; and Brenda Strong as Bobby’s wife, Ann. They are joined by the original series’ iconic stars: Patrick Duffy as Bobby Ewing, Linda Gray as Sue Ellen Ewing and Larry Hagman as J.R. Ewing.

“Dallas has been a success for us on every level: pitch-perfect writing, smart directing and buzz-worthy performances by a new generation of stars and their iconic counterparts,” said Michael Wright, president, head of programming for TNT, TBS and Turner Classic Movies (TCM). “With Dallas’ top-flight ratings, robust growth through time-shifted viewing and the extensive online buzz, it’s clear the Ewings of Southfork have once again captured the imagination of viewers.”

Dallas comes to TNT from Warner Horizon Television, with writer Cynthia Cidre and Michael M. Robin serving as executive producers. Shot on location in the title city, Dallas was developed by Cidre and created by David Jacobs.

Dallas scored cable’s #1 scripted series premiere for the year-to-date for its June 13 debut, drawing 7.8 million viewers in Live + 3 for the two-hour launch. The show’s first two weeks have averaged 6.9 million viewers in Live + 3, with Live + 7 data still to be counted. With Dallas ranking as basic cable’s top new series for the year-to-date, this marks the third consecutive summer TNT has claimed the #1 new show, following Rizzoli & Isles in 2010 and Falling Skies in 2011. Among key demos, Dallas is averaging 2.1 million adults 18-49 and 2.8 million adults 25-54 for the season-to-date.

About TNT

TNT, one of cable’s top-rated networks, is television’s destination for drama. Seen in 99 million households, TNT is home to such original drama series as The Closer, Rizzoli & Isles, Dallas, Falling Skies, Franklin & Bash, Leverage, Southland and the upcoming Major Crimes, Perception and Monday Mornings. The network also features dramatic unscripted originals like this summer’s The Great Escape and the upcoming Boston Blue (working title) and 72 Hours (working title). In addition, TNT is the cable home to popular dramas like The Mentalist, Bones, Supernatural, Las Vegas, Law & Order and Castle, which starts this year; primetime specials, such as the Screen Actors Guild Awards(R); blockbuster movies; and championship sports coverage, including NASCAR, the NBA and the NCAA Division I Men’s Basketball Championship.

Turner Broadcasting System, Inc., a Time Warner company, creates and programs branded news, entertainment, animation and young adult media environments on television and other platforms for consumers around the world.

What do you think? Are you glad to hear that Dallas has been renewed? Do you think the ratings ill keep dropping?