TNT has announced that Dallas will return for a second season Jan. 28, and also announced the premiere dates for a handful other shows, including Rizzoli & Isles.
http://insidetv.ew.com/2012/10/02/tnt-announces-return-dates-for-dallas-southland-more/
http://insidetv.ew.com/2012/10/02/tnt-announces-return-dates-for-dallas-southland-more/