Kicking this one off even earlier, just in case anyone’s got any comments/speculation they’d like to add before tomorrow evening. Remember also that we’ve got an early start tomorrow, with the episode broadcasting at 6.05pm.

But in the meantime… what do you reckon’s going to happen? As ever, actual bona fide spoilers aren’t welcome until after the episode finishes, but feel free to speculate to your hearts’ content. My favourite theory so far is as follows:
We already saw (ep 5) the doctor turn up in consecutive scenes with and without a jacket, and there’s this woman people have been calling ‘doctor’ for some time, locked in the TARDIS as it is being destroyed. I reckon she is going to find a severed limb of the doctor and touch it and for no particular reason this will clone the doctor and make her a Time Lord too and they will swan about and between the three of them stop the TARDIS from being destroyed and stop the universe from being erased.

Wait sorry, now that I’ve written it down I realise this is absolute gibberish.
My other favourite theory is that Steven “Letch” Moffat has written an episode called “The Big Bang” with Karen Gillan in it so that… oh, alright, I’ll stop there.