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New Sherlock is 'best yet'

16 December 2013 Last updated at 12:07 GMT

Sherlock star Benedict Cumberbatch talks about the new series of the drama and why he thinks it is the best yet.

The first episode picks up two years after Sherlock fakes his own death. Martin Freeman returns as his sidekick John Watson.

The new series begins on January 1 on BBC One.