For many Doctor Who fans, especially those of a certain age (and it still upsets me that I can now use that phrase about myself!), the biggest news of the summer - with the exception of the first pictures of the 11th Doctor - has been the return of Tom Baker to the role that made him a national institution and an icon all over the world. Yes, the 4th Doctor is back - in a 5 part audio adventure called Hornet's Nest from BBC Audio. It's been almost 30 years since the 4th Doctor had a new adventure. 30 years since those wonderful warm and throaty tones have been part of a new Doctor Who story.