In the early 1990s Duane was brought on board as the head writer on the BBC Television educational series "Science Challenge". Shortly thereafter she co-wrote (with her husband) scripts for "" and for "Gargoyles". She also wrote the screenplay for the 1996 space adventure game "Privateer 2 - The Darkening", which starred Clive Owen, Christopher Walken, Jürgen Prochnow and Mathilda May. Other screen work from that period includes the screenplay for the "Space Island One" episode "Not In My Back Yard" (1998–1999).