What is the most current season of supernatural?
No context provided
What is the most current season of the 1977 TV series supernatural?
1
No context provided
What is the most current season of the 2005 TV series supernatural as of October 12, 2017?
13
No context provided
What is the most current season of the 2005 TV series supernatural as of October 13, 2016?
12
No context provided
What is the most current season of the 2005 TV series supernatural as of October 7, 2015?
11
Supernatural
https://en.wikipedia.org/wiki/Supernatural
Supernatural (American TV series)
https://en.wikipedia.org/wiki/Supernatural%20%28American%20TV%20series%29
Supernatural is a British anthology television series that was produced by the BBC in 1977. The series consisted of eight episodes and was broadcast on BBC1.
Supernatural (British TV series)
The eleventh season of Supernatural, an American dark fantasy television series created by Eric Kripke, premiered on The CW on October 7, 2015 and concluded on May 25, 2016. 
Supernatural (season 11)
The twelfth season of Supernatural, an American dark fantasy television series created by Eric Kripke, premiered on October 13, 2016, on The CW and concluded on May 18, 2017.
Supernatural (season 12)
https://en.wikipedia.org/wiki/Supernatural_(season_13)
The thirteenth season of Supernatural, an American dark fantasy television series created by Eric Kripke, premiered on October 12, 2017, on The CW and concluded on May 17, 2018.
The British  anthology television series "Supernatural" was produced by the BBC in 1977 and had only 1 season. Season 11 of the American TV Show "Supernatural" debuted on October 7, 2015 and concluded on May 25, 2016. Season 12 of the show premiered on  premiered on October 13, 2016, on The CW and concluded on May 18, 2017. season 13 of "Supernatural" premiered on October 12, 2017, on The CW and concluded on May 17, 2018.