When former Top Gear presenter Jeremy Clarkson revealed he would be making a new show on Amazon Prime after being dropped by the BBC, his successor, Chris Evans, must have felt a little nervous.
Subscription video-on-demand (SVOD) services such as Amazon's have sent shockwaves through the broadcast world, as they gain millions of new viewers each year and produce ever more of their own award-winning content.
Netflix, the market leader, is now in over 15% of British homes, while Amazon's market share is about 5%.
And new technologies that let us watch what we want on whatever device we want are transforming traditional television viewing habits.