The Passing Bells the conclusion of the war. The series was announced by the BBC in October 2013, along with other programmes that played a part in the BBC World War I centenary season. It was a Red Planet Production with BBC Worldwide as the distributor. Filming took place in Poland. Telewizja Polska and Apple Film Production were co-producers. The series aired in the pre-watershed time-slot of 7pm, and the script was written for a younger audience and family viewing. The title was taken from the first line of Wilfred Owen's 1917 poem, "Anthem for Doomed Youth": "What passing-bells for these who die
Bells Line of Road Route 40, which began in the Sydney CBD before journeying to Richmond, where it took the Bells Line of Road through to Lithgow. This continuous alternative signed route between Sydney and Lithgow was broken with the introduction of alpha-numerics in 2013; east of the State Route 40 became A2 then A40, and west of Windsor (including the Bells Line of Road) the B59. In November 2007, the Roads and Traffic Authority (RTA) announced plans to lower the speed limits along much of Bells Line of Road. Within a week, sufficient opposition was expressed that the changes were put on hold.