Sherlock Holmes: The Empty House. It has been three years since Sherlock Holmes apparently fell to his death along with his arch-enemy Professor Moriarty at Reichenbach Falls. Dr Watson, now working as a police surgeon, is called in on a bizarre locked-room murder case, only to find a strangely familiar figure waiting for him when he returns home... This great episode kicked off the third season of this legendary show. As well as wrapping up the loose threads from the Moriarty arc and the season 2 cliffhanger, it also has a much more difficult and potentially disastrous task to accomplish - namely, introducing a different Watson, with Edward Hardwicke replacing David Burke. That this is achieved so seamlessly is a credit to all involved. Personally I love both of them. Great stuff.
