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Open Image ModalCustomers fall to the floor as they grapple for an LED television during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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Open Image ModalA customer jumps on a TV set at Asda in Wembley (credit:Ray Tang/REX)
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Open Image ModalEmployees try to control customers as they attempt to get the last remaining LED televisions during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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Open Image ModalA customer, center, transports a boxed LED television in the basket of a mobility scooter during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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Open Image ModalA customer gestures as he queues to purchase goods including an LED televisions during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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Open Image ModalCustomers wait to enter an Asda supermarket, operated by Wal-Mart Stores Inc., ahead of a Black Friday discount sale in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
(07 of15)
Open Image ModalCustomers stand with goods loaded in shopping carts as they look for bargains during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
(08 of15)
Open Image ModalCustomers rush to get to a sales display of reduced LED television sets during a Black Friday discount sale at an Asda supermarket, operated by Wal-Mart Stores Inc., in the Wembley district of London, U.K., on Friday, Nov. 28, 2014. Black Friday has caught on in the U.K. and worldwide over the last few years as the rise of the Internet has made the event a global phenomenon, with customers always being just one click away from the deals offered by U.S. retailers online. Photographer: Simon Dawson/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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Open Image ModalCherrelle Welch at the Asda store in Wembley, north west London take advantage of the stores Black Friday offers. (credit:David Parry/PA Wire)
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Open Image ModalShoppers at the Asda store in Wembley (credit:David Parry/PA Wire)
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Open Image ModalShoppers at the Asda store in Wembley, north west London queue to get in. (credit:David Parry/PA Wire)
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Open Image ModalShoppers wait at the Asda store in Wembley (credit:David Parry/PA Wire)
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Open Image ModalShoppers at the Asda store in Wembley can't wait to get a bargain. (credit:David Parry/PA Wire)
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Open Image ModalA smiling customer leaves with his new TV (credit:David Parry/PA Wire)
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Open Image ModalCustomers tussle over a TV set (credit:Ray Tang/Rex)