Doctor Who News is offering a copy of the official 50th Anniversary book, Doctor Who: The Vault, to the person who can most accurately guess the BBC One ratings for the UK premiere of The Day of the Doctor.

The aim is to guess the final consolidated viewing figure, as reported by BARB to the nearest 10,000 viewers (i.e. two decimal places). This figure includes all those watching the episode within a week of broadcast, but does not include those watching on iPlayer.

The Day of the Doctor is being broadcast in the UK on Saturday 23rd November at 7.50pm, later than normal Doctor Who episodes. On BBC One it follows Strictly Come Dancing, the latest edition of the Dancing With the Stars format, which achieved a rating of 11.09 million viewers in the most recent reported week. Doctor Who will be opposite The X Factor on ITV, which had 8.67 million viewers in the most recent week.

Doctor Who: The Vault:

This is the full and official story of Doctor Who, from the first pre-production memos in 1963 to the most recent props created for the 2013 series, including interviews with key contributors and scores of prop photos, design sketches and behind-the-scenes stills from every decade of the show's production.

Taking you year by year through the world's longest-running science fiction series, Marcus Hearn explores the show's groundbreaking innovations as well as its impact on popular culture through books and comics, magazines and toys, merchandise and ephemera.

The Vault is a collector's dream and the ultimate celebration of Doctor Who

Entering The Competition:

To enter the competition, please send the following details to comp-50thratings@doctorwhonews.net:

• Your name and email address
• Your country (full address will only be requested if you are a winner)
• Where you read about this competition
• Your guess for the final viewing figure!

Previous Ratings:

For comparison, the rating for the previous Doctor Who episode, The Name of the Doctor, shown in May, was 7.45 million. The last Christmas episode, The Snowmen, had 9.87 million watching at 5.15pm. The last episode shown in November was The Waters of Mars in 2009, which had 10.32 million watching, while the last anniversary special, The Five Doctors, shown in 1983, had 7.70 million watching.

Terms And Conditions:

• The competition closes at 7.50pm GMT, 23rd November 2013.
• Only one entry will be accepted per person.
• The competition is open worldwide.
• BARB figures are expected around 10 days after transmission; we will contact the winner once they have been published.

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