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Doctor Who stars humbled by fan turnout at London event

23 November 2013 Last updated at 11:22 GMT

Thousands of fans have turned out at the official Doctor Who anniversary celebration in London, ahead of the screening of a special 50 year anniversary show.

The three-day event, which is being attended by 8,000 fans a day, features appearances from Doctor Who stars from all eras of the series.

Doctor Who's Matt Smith and Jenna Coleman said they were humbled by the number of fans at the event.

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