Imagine you had a gadget that let you travel to any point in history. Then imagine you could put together a bill of your favourite comedians, pop stars and even cartoon characters. That will give you some idea of this year's Children's Royal Variety Performance, An Adventure through Time. Joseph star Darren Day is the host for a spectacular performance recorded last night at the London Palladium in the presence of HRH Princess Margaret. The show moves through history from the stone age to the space age, with musical guests including Bad Boys Inc, Dina Carroll, Eternal and The Italia Conti Academy Choir. Shane Richie , Mickey Hutton (who wrote the script) and Mr Blobby are on hand to provide the laughs, Noel Edmonds will be gunging some mystery celebrities, and a host of Disney characters appear in a musical medley from The Little Mermaid, Beauty and the Beast, The Jungle Book and Aladdin. And it's all in a good cause: proceeds go to the NSPCC.