EXCLUSIVE: Barbara Wall is stepping down as EVP television for Lionsgate. Wall, who served as head of development and current programming at the indie TV studio, will stay on as a producer until her current contract expires in the fall. The search is underway for her successor. The reasons for Wall’s departure are unclear (some say she felt it was time after six years at Lionsgate), but the timing of the executive changeover coincides with the beginning of the next TV development cycle. Since joining Lionsgate in 2005, Wall has been instrumental in building Lionsgate’s scripted TV slate, which includes AMC’s Mad Men, Showtime’s Weeds, NBC’s anthology series Fear Itself, Starz’s Crash and Showtime’s Nurse Jackie. She also shepherded development by Lionsgate-based producers Clyde Phillips and Stanley Tucci & Steve Buscemi. Before Lionsgate, Wall was EVP production and development for Heel and Toe Films, where she helped develop the pilot for Fox’s House. She also has held programming posts at 20th Century Fox TV, TNT and Fox.