This series starts on BBC 4 in the UK on October 17 at 9pm.

http://www.dailymail.co.uk/home/event ... dragons-evil-maniacs.html

The second episode is called Fantasy, so I am guessing it is probably on the 24th October, the description is

Andrew Marr explores the imaginary worlds of the fantasy novel - and reveals the conventions that have powered the genre to the best-seller lists.