Derren Brown's next episode?

Hey ppl, at the end of Derren Brown’s episode Hero at 30 000 Feet, on 8 September 2010, Derren ends the programme by stating the time and date, saying it’s a unique moment to start someone else’s journey, then he presses a on to begin a 30 day countdown clock…so when is the next episode going to air – one would ume it would be aired this Friday 8th October but there is no mention of it in the TV listings, could someone please explain this - why would there be a countdown if there is nothing to countdown to?