In June 1999, the US skateboarder Tony Hawk made history by becoming the first person to perform a trick that was thought to be virtually impossible. At the X Games in San Francisco, Hawk successfully completed a “900” – flipping round two-and-half times before landing safely back on his board. Hawk’s feat was followed by the massively successful computer game Tony Hawk: Pro Skater, and is credited with sparking a boom in the sport. He talks to Freddy Chick. The programme is a Made-in-Manchester Production