Whether you're watching a movie, bingeing on a classic TV show, or listening to your favorite 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.