Sky Sports reporter Abigail Davies tweeted: "Yet again, well done to those who paid good money to go and watch the best darts players in the world put on a show and actively contributed to them not delivering their absolute best by whistling.
Night 7 - Utilita Arena, Cardiff - Thursday March 20.
Night 8 - Utilita Arena, Newcastle - Thursday March 27.
Night 10 - AO Arena, Manchester - Thursday April 10.
Night 6 - Motorpoint Arena, Nottingham - Thursday March 13.
