Fanny by Gaslight.

Fanny by Gaslight is a four-part British television miniseries adapted by Anthony Steven from Michael Sadler's 1940 novel of the same mame, directed by Peter Jefferies, and produced by Joe Waters. It initially broadcast from 24 September to 15 October 1981 on BBC One. Victorian orphan Fanny Hooper navigates hardship and scandal, eventually discovering her true parentage and finding love amidst the city's demi-monde.