As for the episode itself?

Well, we can confirm that Peter Capaldi is in it.

Perhaps the TARDIS too, but that would be telling.

Well stop there before we give anything else away.

Its got to be nerve-wracking.

Steven Moffat:Uh, yeah, well it is.

AC:Have you seen it on a big screen before?

AC:I think you could probably guess the bits that you mustnt talk about.

And now youve seen it you’ve got the option to guess why everyones so uptight about it.

SM:Well, the funny thing for us is that were still thick in it.

Were still making episode 12, were about to make the Christmas special; we havent stopped.

You get sent stuff to look at.

Brian Minchin:Every day we get sent moreDoctor Who.

So have you had a good day today?

SM:Yeah, todays been good.

AC:So where was the scene at the bottom of the steps?

Where was that filmed?

BM:That was in Tenerife.

AC:So, a bit of a travel.

[laughter]

AC:Slightly different weather system.

So, the big thing really… [spoilers redacted].

When did that come upon you?

I dont quite know why we didnt… we just sort of didnt!

SM:Were being a bit cryptic about that.

SM:There is an arc, yes.

So the relationship between Clara and the Doctor is presumably going to develop in this series?

SM:Well, its sort of lovely now.

[laughter] Im very Scottish today.

Theyre not bothering with that, theyre just the very, very best possible friends.

I suppose the way before he was sort of in denial about that.

We got a lot of fun out of that for a whole series but were not doing that anymore.

SM:What was your stat on the sales of t-shirts?

Nobody really knows those kinds of stats and they shouldnt be doing it illegally and we hate them all.

But it is an epically successful show.

Its still huge, every newspaper still writes about it.

Shows dont do that after ten years.

I mean, they gently decline andDoctor Whohas gently declined to gently decline… [laughter].

We carry on but its amazing, its an astonishing thing.

I cant think of a bigger advert for the BBC thanDoctor Who.

What more could the BBC do?

SM:And yet they do so much more!

Youre going to love this!

[laughter] Pitch that at NBC!

Is he going to be a young dashing hero?

There is no other broadcaster so madly varied and so genuinely mad.

Can you imagine what the world would be like without all of that?

What will be big next?

And you cant even taste the cakes.

SM:I bet they are watching.

I bet they are!

Theyre not efficient but, hey…

AC:John Whittingdale is listening now.

At this point, the floor was opened up to audience questions.

Audience member 1:Do you find it harder making single episodes or episodes that are joined together?

Audience member 2:Film the next episode in Perth.

[laughter]

SM:And where do you live, young lady?

[laughter]

Audience member 2:Perth.

SM:Now thats an amazing coincidence.

Not only do you live in Perth but youd like to see aDoctor Whostory set in Perth.

Well, we hardly ever leave Cardiff but I shall circle Perth on the map.

AC:That wasnt a question, that was an instruction, and it seems to have worked.

SM:Generally speaking, I can answer that.

Science is totally my thing.

We never get that wrong.

I dont know this.

Is there a film?

Is there a Ladybird book?

[laughter] Then I got Madame de bloody Pompadour.

Big, clanky monsters in Victorian times or Roman times or whatever: it looks kind of great.

Its several million years in the making and we want to get the value out of it.

So, you now know what an artistic conversation between the showrunner and the actor is like.

But no, Im ahead with knowledge.

Im going to collectDoctor Whotrading cards and not make eye contact with anybody.

And I was right.

[applause] Ah, the applause of the lonely.

I am one of you.

BM:Youd have to wait longer to get them, I suppose.

SM:You mean, make it specifically for binge-watching?

Would you want to do that withDoctor Who?

So, as revolutions go, its not absolutely gobsmacking.

Who knows how well end up?

I kind of thinkDoctor Whoprobably belongs once a week.

Its on once a week,Goggleboxis on once a week,Doctor Whois on once a week.

SM:Do you means the ones I exec, the ones I wrote?

Audience member 6:The ones since you took over as showrunner.

I was very proud ofThe Eleventh Hourbecause that was seen as a difficult task.

It was hell to do but Im proud of that.

Just generally, the thing youre proud of onDoctor Whois that you keep getting the shows out.

Thats a really vague answer but maybeThe Day Of The Doctorbecause it was really, stupidly difficult.

BM:Well, this year its been different.

Audience member 7:And is the final decision with you?

SM:Uh, yeah [laughter].

Thats not a big revelation, you know, it would be slightly odd if it wasnt.

But I would listen if someone was really keen on their title.

So, titles are slightly more important than you think and they set a tone and create an expectation.

BM:Most of them just arrive with an X.

SM:Yes, an X.

Our script editors take my titles off.

I live in hope of a tick.

AC:Its weird how nothing is uninteresting, theres no question that isnt interesting.

Even something about titles is incredibly fascinating.

People would wander off in confusion.

Thats wrong, you shouldnt really be doing that.

AC:And that episode will be called X.

Audience member 9:So, are you grooming somebody else to take over from you in the future?

SM:Am I grooming people?!

[laughter] I didnt expect it to go so dark.

SM:That went from grooming people to deliberately sabotaging them.

I can confirm that Im doing neither of those.

I do that sometimes.

Doctor Who returns to BBC One on Saturday the 19th of September with The Magicians Apprentice.