The 63-year-old Zaslav ascended to this post via last year's merger between WarnerMedia, the parent company of the Warner Bros film studio, and Discovery Inc, the factual programming network which became famous for its nature and science documentaries in the early Sky TV years. Under Zaslav's presidency, which began in 2006, it became better known for lifestyle and reality shows including Dr Pimple Popper, about an attractive dermatologist turned YouTube celebrity, and 90 Day Fiancé, in which immigrants try to persuade a US citizen to marry them before their temporary visa expires. Anyway, now he's in charge of the century-old Hollywood institution that brought us Casablanca, A Star is Born, 2001: A Space Odyssey and The Dark Knight.