A new type of spectator at a darts competition
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The changing face of darts fans

9 January 2012 Last updated at 16:25 GMT

Better known for attracting a certain crowd of the beer-swilling variety darts has now got the royal seal of approval.

Zara Phillips and her husband Mike Tindall are among a growing number of fans.

It is the fourth biggest participation sport in Britain.

The BBC's Keith Doyle went to the World Professional Darts Championships in Surrey to find out why.

Report features Barry Gilby, British Darts Organisation, and Martin Adams, World Professional Darts Champion.

Pictures courtesy BBC Sport.