How many television homes are there in the world? How many of them are digital? How many of them pay to subscribe to television services? Estimates vary. We can say with some confidence for major markets but the total figure is less clear. Yet the global television industry is worth hundreds of billions of dollars a year. Nobody knows for certain how much, although various figures are available. It is difficult to get a clear picture of pay television worldwide, which is why we are publishing our own originally researched data.