I know this is going to sound very self-serving, and I apologize for it, but if you can write comedy, you can pretty much write anything, because it's the hardest. It's the most technically demanding, the most precisely evaluated form of writing. People know if it works or not. There's a big button marked 'fail,' and that's when nobody laughs.

Brainy's the new sexy.

I don't know. I can't tell the future I just work there.

Every episode [in a TV series] is a challenge, and what's challenging in most episodes is the monster. You're always a heartbeat from the monster looking ridiculous. You really have to work so hard to make them not look like ridiculous when they turn up on the set.

You have to take your own bold approach, and if you do you will be rewarded with success. Or calamitous failure. That can happen too.

Come on, Rory! It isn't rocket science, it's just quantum physics! -The Doctor (Matt Smith)

It’s been a long time since Sherlock Holmes jumped off that roof - it’s time to reveal the truth about what happened between him and the pavement.