Shoppers gotta shop. And beat the crap out of each other over flat-screen TVs.

Shoppers wrestle over a television as they compete to purchase retail items on "Black Friday" at an Asda superstore in Wembley

Shoppers wrestle over a television as they compete to purchase retail items on "Black Friday" at an Asda superstore in Wembley, north London, November 28, 2014.

Britain's high streets, malls and online sites were awash with discounts on Friday as more retailers than ever embraced U.S.-style "Black Friday" promotions, seeking to kickstart trading in the key Christmas period.

In the United States the Friday following the Thanksgiving Day holiday is called Black Friday because spending usually surges and indicates the point at which American retailers begin to turn a profit for the year, or go "into the black".

Photo: REUTERS/Luke MacGregor.