When the episode aired on PBS in America, the producers contacted the PBS affiliate in Dallas (KERA Channel 13) to see if there were any complaints with regards to the JFK storyline, still considered a sore spot in Dallas. KERA reported that the only complaints were about Kryten cannibalizing a dead body, and nobody mentioned JFK.
Lister states that he is now 28 years old, so he has aged 3 years since the first series (in the second episode, Future Echoes (1988), he says he is 25). In real life, Craig Charles was 32, 9 years older than he was when he filmed series 1. Of course, due to the time he was in stasis on Red Dwarf, Lister has existed for over 3 million years. As well as this, he also spent another 200 years in a deep sleep unit on Starbug between series 5 and series 6.
When the second shooter fires from the Grassy Knoll, Lister, Rimmer and Cat are dressed up as tramps. Three tramps are reported to have been found behind the Grassy Knoll when the police searched it after the shooting, but later released. For many years, conspiracy theorists assumed that they were part of the assassination plot.
This was the first episode to not be produced in front of a live audience. To get authentic laughter response, the episodes of Series VII were shown to audiences and their laughter recorded, though some "director's cuts" that have been released to DVD omit the laughter track. This practice would be dropped for Series VIII, which was shot in front of a live audience again.