By Simon Enright
Programme producer, BBC Newsnight
Presented from Edinburgh by Jeremy Paxman and Kirsty Wark
An Act of Disunion
It's rather a special edition of Newsnight tonight. Exactly 300 years after the Scottish parliament voted for the Act of Union we're being allowed into the Hall where the vote took place to have a debate of our own.
The Union - fraying at the edges?
We're devoting the whole programme to discussing the future of the Union - will England, Scotland, Wales and Northern Ireland see another century, let alone three, as United countries?
Our opinion poll for the programme would seem to suggest that a majority don't think it will.
We've been told that it is the first time Parliament Hall has staged such a debate in, well, 300 years.
We've an audience of the great and good: politicians; academics; lawyers; novelists; actors; pop stars; wannabe pop stars.
And for the first time, well, in slightly less than 300 years - Jeremy and Kirsty will be presenting together. They've never done that on Newsnight.
Oh and we think the wonderful BBC Library has found the last time they did appear together - it was on Breakfast Time. We'll get a clip of that on the website as soon as we can.