The series, devised and produced by Olivia Seligman (with others) and currently produced by Simon Tillotson with Victoria Brignell, runs weekly throughout the year on
BBC Radio 4, except for a
summer break of approximately eight to ten weeks between July and September. Each programme covers a specific historical, philosophical, religious, cultural or scientific topic. In a November 2009 interview, Bragg described how he prepares for each show: "It's not easy, but I like reading. I enjoy what was called
swotting in my day. I get the notes late Friday afternoon for the following Thursday morning. I find all the spare time I can for reading, get up very early on a Thursday morning, have a final two hours of nervousness, and away we go." Bragg hosts discussion of the week's subject featuring what he has characterised as "three absolutely top-class academics" on the subject. The programme is normally broadcast live and unedited on Thursday mornings at 9a.m., lasting around 42 minutes, and is then available online. He begins each episode with a short summary of the week's topic, then introduces the three guests. He guides the discussion along a generally chronological route, then either concludes the programme himself or invites summation remarks from one of the specialists. ==History==