BBC Visual Effects destroyed their only model of Red Dwarf for a sequence in the fifth series episode "Demons and Angels", where Kryten's triplicator sets off a chain reaction that destroys the ship. The production team made sure that all model sequences required for the current series were completed beforehand. The ship doesn't appear in the sixth series (the running plot being that of Red Dwarf having been stolen) and only appears in the seventh series as archive footage from earlier episodes. It wasn't until the eighth series that a computer-generated version was used.