Question: On which day was the host of the BBC game show that aired from 18 August 2014 to 31 August 2015 born?

Context paragraphs:
The Edge (game show): The Edge is a BBC game show that aired on BBC One from 16 March to 13 November 2015.  On the show, contestants answer quiz questions and bowl balls to get prize money, but if the ball rolls over the Edge, the player is out.

The Link (game show): The Link is a BBC game show that aired on BBC One from 5 May 2014 to 17 July 2015 and was hosted by Mark Williams.  It is based on the trivia game, "Linkee".

Decimate (game show): Decimate is a BBC game show that has aired on BBC One from 20 April 2015 and is hosted by Shane Richie.

Richard Osman: Richard Thomas Osman (born 28 November 1970) is an English television presenter, producer, comedian and director.  He is the creator and co-presenter of the BBC One television quiz show "Pointless".  He also presents the BBC Two quiz show "Two Tribes" and is a team captain on the comedy panel show "Insert Name Here".

Pruchya Isarow: Pruchya Isarow (Thai: ปรัชญา อิสโร ; born 16 October 1995) is a tennis player from Thailand playing on the ATP Challenger Tour.  On 18 August 2014, he reached his highest ATP singles ranking of 775 and his highest doubles ranking of 403 achieved on 18 August 2014.

Two Tribes (game show): Two Tribes is a BBC game show that has aired on BBC Two from 18 August 2014 to 31 August 2015 and is hosted by Richard Osman.

Pressure Pad: Pressure Pad is a BBC game show which was hosted by John Barrowman.  It aired on BBC One from 4 November 2013 to 19 September 2014 and BBC Two from 22 September to 3 October 2014.

Dirty Rotten Cheater: Dirty Rotten Cheater is a game show that aired on PAX from January 6 to April 14, 2003.  The show's gameplay combines elements of "Weakest Link" and "Family Feud" along with the BBC game format "The Enemy Within", with a contestant being privy to answers in each round and trying to elude detection by fellow contestants and the studio audience.  The PAX version, of which 13 weekly episodes aired, was hosted by Bil Dwyer, produced by Jonathan Goodson, and shot at CBS Television City in Hollywood (except for the original pilot, which was titled "Cheaters" and produced on the "Weakest Link"' s set at NBC Studios in Burbank).  Different versions of the show also aired in other countries.

Come On Down! The Game Show Story: Come on Down!  The Game Show Story is a British documentary that aired from 10 to 31 August 2014 on ITV and is presented Bradley Walsh.

Who Dares Wins (UK game show): Who Dares Wins is a BBC game show broadcast on BBC One which began on 17 November 2007.  The programme is hosted by Nick Knowles.  It was a BBC National Lottery game show until 21 January 2017.

Supporting paragraphs: Two Tribes (game show) Richard Osman
Answer: 28 November 1970