Pippa Middleton

The Mikado, Coliseum, London

Little did we realise, when Jonathan Miller unveiled his Art Deco "Mikado" in 1986, that the production would run as long as it has, or that it would be so influential: many shows have paid homage to the heady blend of direction, design, costumes, and choreography achieved by Miller, Stefanos Lazaridis, Sue Blane, and Anthony van Laast.

Today's the day for new blood in the radio programme's editor's chair

The names of the guest editors lined up for Radio 4's Today show were released today. Between 27 December and New Year's Day, the 6am to 9am slot will be in the hands of the Nobel prize-winning geneticist Sir Paul Nurse, journalist Dame Ann Leslie, comedian Al Murray, poet Benjamin Zephaniah and the US philanthropist Melinda Gates, wife of Bill.

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Diary: Cameron bonds with Bear

Bear Grylls and Dave Cameron, fellow Old Etonians – and, like myself, thriving survivors of Boarding School Syndrome – were recently introduced, Grylls tells me at a screening of his new Discovery Channel series Born Survivor. "He was cool, actually," said Grylls with an admirably straight face. "He's got a real presence about him. Politics aside, I thought he was great. Actually not even politics aside: I think his politics are great!"

Diary: Let's not cash in on Pippa

Designer Alice Temperley stubbornly refuses to "cash in" on the gown she created for Pippa Middleton to wear to the royal wedding reception. "What amazed me is how widespread that one image of Pippa leaving the party in her dress was," Temperley told the Telegraph yesterday (helpfully, the dress was pictured alongside the text). "But we'd made it specifically for her and I wasn't going to start trying to capitalise on that." Quite right, too – the interview ended with a plug for a Temperley-designed scarf instead. Frankly, I find it appalling that anyone would seek to promote their product using images of Pippa in that dress or any other.

The girls can't help it: The sacred bond of sorority

Friends, rivals, partners – sisters can be all these and more. Why is this particular sibling set-up so complicated, and so fascinating to outsiders? From the Bennets to the Middletons, Harriet Walker studies the sacred bond of sorority