The event is part of BBC Radio 4 Character Invasion, a project that allows fans to explore the world of characters. On Saturday 29th March 2014, a host of fictional characters will make appearances on various shows on Radio 4, including Dawn French reviving her role as the Vicar of Dibley for Thought For The Day, Chris Packham reporting for Tweet of the Day with Sesame Street's Big Bird, and the original cast of The Hitchhiker's Guide to the Galaxy reuniting for a live performance at the BBC Radio Theatre.
Tickets will be given at random from a draw. For your chance to win, register here by 4pm on Thursday 13th March. Tickets are limited to up to four per household.