Emilia Fox set for Who Do You Think You Are? Live

With just weeks to go until the return of the world's largest family history show, the latest celebrity set to appear at the event has been confirmed.

Actor Emilia Fox, best known for her roles in Silent Witness and Merlin, will visiting Who Do You Think You Are? Live when it returns to London's Olympia from 24-26 February. She joins fellow Who Do You Think You Are? alumni Larry Lamb and Richard Madeley, who will also be sharing their behind-the-scenes experiences and updating visitors on the discoveries that they have made since filming finished. 

But it's not just famous faces who will be exploring their ancestral stories: family historians from around the world will be on hand to share research tips and offer advice on solving tricky genealogical conundrums. And that's not all: new features making their debut at this year's event include an interactive Occupations Zone, offering the chance to learn about the ways in which your ancestors made a living, and expanded areas to take a break and meet fellow researchers.

We've teamed up with show organisers to offer readers the chance to win one of 10 pairs of tickets to the event, worth £30 a pair. To enter, simply answer the following question: On which day will former EastEnders star Larry Lamb be appearing at the show? Send your answer to Matt Elton at matt.elton@immediatemedia.co.uk, using subject line 'Live ticket competition' and making sure to include your full postal address, a contact telephone number and the day of the event – Friday, Saturday or Sunday – that you would prefer to attend. We'll choose ten correct answers from those received by the closing date of 5pm on Friday, 10 February 2012. Good luck!