This final in the three part documentary series looks at the capabilities of modern commercial aircraft to regularly travel faster than the speed of sound.

"Rail" captures British Railways at a major turning-point in its history. In certain respects, this was a period of considerable upheaval and loss. There was a facing-up to the increasing need for a big modernisation drive. Full and speedy electrification, or the wider promotion of diesel-power on remaining lines, became a matter of top priority. Geoffrey Jones recorded a rapidly disappearing world of everyday steam travel, with its labour-intensive rail workforce : some of the footage in "Rail" (recognisable from "Snow") dates from around 1962.

Comprising train and track footage quickly shot just before a heavy winter's snowfall was melting, the multi-award-winning classic that emerged from the cutting-room compresses British Rail's dedication to blizzard-battling into a thrilling eight-minute montage cut to music. Tough-as-boots workers struggling to keep the line clear are counterpointed with passengers' buffet-car comforts.

Story of a man in prison, condemned to death, and his subsequent execution. Inspired by "Ballad of Reading Gaol" by Oscar Wilde.

Story of a man in prison, condemned to death, and his subsequent execution. Inspired by "Ballad of Reading Gaol" by Oscar Wilde.

In a mid-19th century Essex country house, a young governess for two children becomes convinced that the house and grounds are haunted by ghosts and that the children are being possessed.

In a mid-19th century Essex country house, a young governess for two children becomes convinced that the house and grounds are haunted by ghosts and that the children are being possessed.

In-house documentary recording the construction of the then new BBC Television Centre.