There have been very few consistencies throughout all series, and it has never aimed for precise accuracy with regards to its continuity. Christ, look at the episode in series 5 where they're on the TV Show 'Blighty's Hardest Boozers.' That episode ends with about 30 members of a motorcycle gang circling the Clansman, presumably going in to kick f**k out of them. If that happened in this series, there'd be a P&B outcry that the next episode didn't start in the hospital with every cast member having broken bones after being beaten to a pulp by a bike gang.