The early bird catches the worm, as the saying goes, and Netflix, which started out as a DVD rental and sales mail order firm in 1997, was one of the first to venture into streaming in 2007. It's now the world's largest and most successful streaming service and is available worldwide, with the exception of mainland China (due to local restrictions), Syria, North Korea, and Crimea (due to US sanctions). It had only 1,000 titles when it first launched as an online platform but now has over 15,000. Since it began producing original material in 2013, it has created upwards of 1,500 titles. It boasts over 209 million subscribers and in 2020, reported revenues of $25 billion (£18.5bn).