 The fifth episode, "Happening", features William Gaunts character  emerging unscathed from a fire. It just so happened that a fire was  raging at a building nearby to the Borehamwood studios were "The  Champions" was being shot. A camera crew was dispatched to film the  real conflagration, with the aim of building a story up around it so  that the footage could be used. The same fire footage would  resurface a year later in an episode of "Randall and Hopkirk  (Deceased)".