From the bunker to the firing line in seven days
It's certainly been a varied seven days.
Perhaps less well known is the role it plays in our air defences. Deep underground is a bunker. Peering at screens are airmen and women watching not only over our aerial borders, but skies as far afield as Iceland and Scandinavia.
This year we celebrate the 70th anniversary of the Battle of Britain.
The crews stationed at their high-tech screens beneath the Northumberland countryside are a 21st Century echo of the servicewomen pushing model aircraft around on 1940's maps while moustached officer types scramble spitfires to intercept.
The role is the same, only now you'll find women are barking the orders as well as the men.
Seven days later I'm out of the bunker and about to witness four individuals being put squarely in the firing line.
I've been asked to do the warm-up. Not so much a comedy routine to break the ice, it's more of a practice session where the audience can fire questions at me.
I hope to offer a robust defence of the BBC should the need arise, but I will be wearing Kevlar underwear just in case. Although I've not been told this by the show's producers, I fear my job is to leave the audience scenting blood so they are hungry for the main course.
The assembled crowd will be feeding on a choice panel.
- Matthew Taylor, Chief Executive of the Royal Society for the encouragement of Arts, Manufactures and Commerce.
- Iain Dale, Tory political activist and blogger.
- Deborah Mattinson, Gordon Brown's former personal pollster and author .
- Adrian Fawcett, CEO of the General Healthcare Group
Of course it's normally pretty polite and with Eddie Mair in the chair I'm sure any probing will be done with the utmost courtesy.