"The great god Vulcan must be enraged. It's so volcanic. It's like some sort of volcano."

Marvel as the next Doctor forges new vocabulary before your very eyes…

Yes, it's Peter Capaldi, in a previous life, as a patriarch who escapes a pumice pummelling. But it's David Tennant as the legendary Time Lord who saves his future self from The Fires of Pompeii, with the aid of his trusty Water Pistol of Death.

It's a tale of armless augurs, stony seers and Sybelline Sisters as born-again Welsh folk Mr and Ms Spartacus end up with prime seats for the Monsters of Rock.

Are fixed points in time pointless? Has Amy Pond branched out into Sister-of-Karn-o-grams? And is the only way up for danders?

Listen in as Jim and Martin, neither household names nor household gods, let their thoughts erupt.