The serial received its only UK transmission in the Autumn of 1987, two years after it was made, by which time both Troughton and Nigel Stock – who plays an old ally of Mordrin's – had died. Troughton subsequently worked on other television productions, but they had all been broadcast by the time "Knights of God" was transmitted (i.e. it was his last "transmitted" role, not his last "filmed or recorded" role, which was an episode of "Super Gran" filmed a week before he died in March 1987).