High Quality Content by WIKIPEDIA articles! The eighth season of Supernatural, an American paranormal dramatic television series created by Eric Kripke, premiered on October 3, 2012, and contains 23 episodes. This is the seventh season to air on the CW television network. It is the first season headed by Jeremy Carver as executive producer and showrunner. It airs on Wednesdays at 9:00 pm EST on the CW.