BBC's 90th birthday amid testing times

The BBC marked the 90th anniversary of its first ever transmission yesterday beset by doubts about its future after scandals surrounding its reporting of child sex abuse allegations.
What was then known as the British Broadcasting Company crackled into life on November 14, 1922, with a radio news bulletin featuring stories about a train robbery, a "rowdy meeting" involving Winston Churchill, and billards scores.
But 90 years later the BBC, now the world's largest broadcasting organisation, faces one of the most serious crises in its history as it seeks to defend its reputation.
The BBC was first hit by scandal last month over a decision by its flagship current affairs programme, Newsnight, to shelve an investigation into claims of paedophilia surrounding its late television star Jimmy Savile.
Weeks later Newsnight was forced to retract false allegations that a senior Conservative politician abused children at a care home in Wales in the 1970s.
The BBC's director-general George Entwistle resigned on Saturday after 54 days in the job and the corporation has launched a series of investigations into both of the scandals, while it searches for a new leader.