A man spends thousands of hours sharing the details of his life with others. Not on Twitter, or Facebook, or any other online social network. It's 1978, and Mark Talbot is live with Second Side Up: his very own radio show, distributed through cassette tapes. It all starts with a lifelong dream in mind—to be employed as a radio presenter on air. But just as the rise of social media sees millions sharing their lives the way Mark did, the entire archive of Second Side Up is found for sale on Gumtree.