Well to be fair, they work faking Cardiff as London again (the park where Danny came out at the start is right by Cardiff University, but they had London Barclays Bikes and TFL bus stops nearby) and in 3 years in Cardiff I didn't see too many red phone booths, but I see a lot of them in London. Mostly covered in urine, call girl cards and tourists, but still, if you're gonna fake London you'll need them.

My memories from Trial of a Timelord are a bit weak .. Can aTARDIS land in the Matrix?

Just wondering about that scene with Missy, Seb and dead policeman

I'd hate to have to sit a Gallifreyan exam.
Looks at exam booklet. Single A3 sheet folded in half to make four A4 pages. Nothing on the back, exam title etc. on the front. Thinks "Excellent!"

"OK, You may open your examination papers now..."

1022 page long exam.

"Cr....!!!!!!!"

The Master's TARDIS was inside the Matrix.

it must have been in St. Paul's .

btw - what's the matrix ?

http://en.wikipedia.org/wiki/Matrix_(Doctor_Who)

I think Missy's TARDIS is the obelisk thing in the mausoleum.

I could've sworn I saw an obelisk outside the cafe in Deep Breath, so I think that's where Missy was when she put the ad in the paper!