Charlotte Higgins, the "Guardian"'s chief culture writer, steps behind the polished doors of Broadcasting House and investigates the BBC. Based on her hugely popular essay series, this personal journey answers the questions that rage around this vulnerable, maddening and uniquely British institution. Questions such as, what does the BBC mean to us now? What are the threats to its continued existence? Is it worth fighting for? Higgins traces its origins, celebrating the early pioneering spirit and unearthing forgotten characters whose imprint can still be seen on the BBC today. She explores...