Roger Moore had a director's union ticket and stepped into the director's chair at short notice (and the following episode in production order) due to the untimely death of Basil Dearden who was lined up as director for these episodes. Some regarded as rather spooky the fact that Dearden's previous project with Moore was The Man Who Haunted Himself (1970) which features a car crash and this episode also has a car crash....Dearden died in car crash.
The TV company where Brett and Danny attend the TV debate is called Tribune TV - a nod to the name of the production company behind The Persuaders itself.
Tom Gill who has a minor part in this died before broadcast.
In this episode directed by Roger Moore, there is a point-of-view shot through a gun barrel of Moore walking, foreshadowing his role as James Bond.