Got to agree with Russell. Whatever your special interest is, you can find fault with every film / TV prog made because its the characters & plot that matters most to the makers.
They don't really care if they have someone in their show that wears a 'wrong' dress, drives a 'wrong' car, listens to a 'wrong' song, etc.
Lots of times continuity make an effort to get it right ..... in most TV shows they make an effort to ensure if I guy leaves his house in (say) a Capri, that he's still in a Capri en-route and the same when he gets to his destination.
The same care is not taken for instance when trains are shown on TV ..... a guy can board a train that is pulled by a steam loco, next time the train is shown, it's become a EMU (electric multiple unit) and when he gets off its fronted by a diesel loco. The railway buffs go mad, but does anyone else watching the show care ..... NO.
............... So you NS anoraks, give them a break.