Bridge for "The Rose Bed Memoirs". The last two episodes held several scenes filmed at a high-end house in Highgate owned by a silk merchant, in particular the opera house and bar Jools frequents, and the DG's (Director General of MI5) office. Rural scenes were filmed across the South East of England, including in areas in Surrey, and outside Maidstone in Kent. In the series finale, the exterior of Sizewell nuclear power stations in Suffolk was used as a double for the fictional Sefton B power station. Post-production Each episode took approximately two months to edit, and editing usually began as the episodes were still being shot. The editors would work on two episodes simultaneously. Following the completion of the episodes, Muskett added the score for them. The episodes include split screen sequences. Although the sequences were presented in a similar vein to the American action series 24, the split screen idea did not come from the show itself; Nalluri thought of it independently after visiting a pub one night after filming wrapped up. The series also introduced the premise of not including any production credits. The producers agreed that adding credits would be a waste of time, and that the viewers would pay no attention to them. However, they also saw this as an opportunity; as Spooks is a spy show, Wolstencroft had the idea that it would be "cool" to have a show that was anonymous, and it would fit the spirit of the series. Broadcast and reception Broadcast, ratings and impact Before broadcasting began, the BBC considered airing the show on a Saturday night timeslot as its research found that any potential viewers were less likely to watch television on Saturdays than most other nights of the week; the BBC hoped that Spooks would boost its timeslot. However, the series instead broadcast on Mondays. The series began broadcasting on 13 May 2002 on BBC One during the 9 to 10 pm timeslot, and continued on every Monday night until 17 June 2002, with the exception of the fourth episode, which was viewed on Tuesday 4 June starting at 10 pm, due to an overrun of the coverage of Elizabeth II's Golden Jubilee. The episodes were also repeated on the digital channel BBC Choice. In the US, the first series aired in mid-2003 on A&E. However, each episode had approximately ten minutes edited out to accommodate for advert