Talking Pictures, run by 74-year-old Noel Cronin and his daughter Sarah, airs nothing but classic old TV shows and movies. The content is vintage, and so is the way the channel is put together: Neil builds the broadcast schedule for each day the old fashioned way — by hand, with each movie's details noted on a paper card.

But if you think looking backwards is bad for business, think again. Talking Pictures has become a huge cult success, reaching millions of viewers across the U.K. The family-run channel launched on linear TV in the U.K. in 2015 and has grown to be one of the biggest independent channels in Britain. About four million people tune in every month, according to the British Broadcasters' Audience Research Board.