Veteran “Supernatural,” The CW’s longest running series historically and the sixth longest scripted hour-long drama historically (behind “Law & Order,” “Gunsmoke” and “Law & Order: SVU,” “NCIS” and “Grey’s Anatomy”) will conclude in 2019-20 after 15 seasons. Debuting on former network The WB on Sept. 13, 2005, “Supernatural” focuses on brothers Sam (Jared Padalecki) and […]
