 Complete the following phrase:  Walton made history at the 2007 Winmau World Masters in Bridlington by hitting a televised nine dart finish. It was the first time a player had hit a nine-darter in the televised stages in the 34-year history of the event Chris Mason achieved one in the preliminary round a few years previously, and was the first on BBC television since Paul Lims historic World Championship feat in 1990. Waltons 2008 campaign was hampered by a shoulder injury but despite sliding down the world rankings, he entered the 