In 1975, Humphrey returned to Australia and applied for a job at
Network Ten in a production capacity. Instead, she was offered an on-air role as a reporter for Ten's
Eyewitness News, later serving as a weather presenter and a newsreader. She was the first journalist on the scene of the
Granville rail disaster in January 1977, and her reporting of the disaster – cameras calculatingly placed to bring the full force of the dimensions of the news event; personal reportage on-camera given way to a staggering arresting loss of objective composure – impressed the national broadcaster enough, the
Australian Broadcasting Corporation (ABC), to propose that she present its current affairs program
This Day Tonight, and subsequently,
Nationwide. In 1983, Humphrey became pregnant with her second child and the ABC's management sought to remove her from on-air roles—including the fifth of a series of opera simulcasts she had been presenting, the
Australian Opera's production of
Adriana Lecouvreur on 18 February 1984—citing what Humphrey called "aesthetic reasons" (or a "visual overload" to viewers, as an ABC arts producer had said) rather than medical ones as to why she should not present the simulcast on air whilst 33 weeks pregnant. Humphrey sought internal mediation, which failed. She then took the ABC to the
New South Wales Anti-Discrimination Board, and the broadcaster subsequently reversed the decision. In 1985, Humphrey was the original presenter of the consumer affairs program
The Investigators. ==Personal life==