Chain Reaction is Radio 4's tag-team interview show. Each week, a figure from the world of entertainment chooses another to interview; the next week, the interviewee turns interviewer, and they in turn pass the baton on to someone else - creating a 'chain' throughout the series.
Mark Steel has presented a range of his own programmes on Radio 4, from The Mark Steel Solution, The Mark Steel Revolution, The Mark Steel Lectures to, most recently, the Sony Silver Award and Writers Guild Award-winning Mark Steel's In Town. He also occasionally appears in programmes that don't have his name in the title, such as The News Quiz.
Barry Davies is a commentator perhaps best-known for his football coverage, covering ten World Cups, seven European Championships, and two FA Cup finals. He's also commentated on the Olympics, the Commonwealth games and Wimbledon, as well as the World Stare-Out Championships in 1998.
In this interview, obsessive sports fan Mark asks Barry about being present at some of the most important sporting moments of the last forty years; about remaining impartial ("Where were the Germans? Frankly, who cares?"); and about the changing face of sports and sports broadcasting.