Whether you''re watching a movie, bingeing on a classic TV show or listening to your favourite song, you''re probably streaming it. Videotapes, DVDs and CDs are mostly just memories now. Streaming puts a world of options at your fingertips when you're at home and, with a smartphone or tablet, when you''re on the go. Find out how streaming was invented, how it works and what the future might hold for this part of a high-tech life.