Question: What show premiered Season 13 on The CW on October 12, 2017?

Related documents: [0]  [DOC] Supernatural: Bloodlines was a proposed American television series, before being decided against by The CW for the 2014–15 season. It was set to be a spin-off of "Supernatural", with the twentieth episode of the show's ninth season serving as the backdoor pilot. The backdoor pilot was written by Andrew Dabb and directed by Robert Singer. The series was set to explore the "clashing hunter and monster cultures in Chicago". Although the show was not picked up by The CW for the 2014–15 television season, the network is open to another spin-off of the series in the future, and are currently planning a new spin-off called "Wayward Sisters", based on a fan idea, to be backdoor piloted in Season 13. [END] 
[1]  [DOC] The thirteenth season of "Supernatural", an American fantasy horror television series created by Eric Kripke, will premiere on October 12, 2017, on The CW. The season will consist of 23 episodes and air on Thursdays at 8:00 pm (ET). This is the second season with Andrew Dabb and Robert Singer as showrunners. [END]  
Answer: Supernatural
Supernatural