THE lobby of the sprawling, low-roofed Netflix headquarters in a sleepy town in California is dominated by a huge television screen, a popcorn cart and a series of glass display cabinets. They hold 13 golden Emmy Awards that Netflix has won for its stellar original series, including Orange is the New Black and House of Cards.

In 2007, less than 10 years ago, Netflix was a DVD rental business, like nearly-defunct rental store Blockbuster.

Now it is the dominant internet television service with 76m users worldwide, more than 100 original series and films, and delivered the best return of any stock in 2015.