Firefly (Fox science fiction series, 2002-3)

Episode: 3: Shindig
In the year 2517 the spaceship Serenity visits the planet Persephone, and in the street scenes appears a white/aquamarine British double decker of 'Persephone Coaches'. It's open top and either a Leyland Atlantean or a Daimler Fleetline, and there is one fleeting view of the street from on board. This bus would therefore be at least 535 years old.... The scene was actually shot in Los Angeles, and is also glimpsed at the very beginning of some of the other episodes.....Here are some screencaptures provided by David Frazer - anyone care to identify?