In 1967 with the advent of
talk radio, Robertson began his broadcasting career working at a number of stations in the southwest of Western Australia. In 1972 he joined the
Australian Broadcasting Corporation (ABC) in Sydney, beginning on the radio station
2BL. He moved to Canberra a few months later and worked on 2CY and
2CN. A well known part of his breakfast show on 2BL was his daily
tête-à-tête with either
Caroline Jones or
Margaret Throsby. He also presented the 7 pm television news for the ABC. In 1980, he worked at
2DAY-FM, but returned to the ABC some months later. From 1982 to 1988 he was host of the
Beauty and the Beast television talk show on
Network Ten. Leaving ABC radio, he then moved to the
Seven Network where he hosted the news program
11AM, and in 1985 became the host of
Newsworld. Robertson took a unique approach to
Newsworld, and his later news show on the
Nine Network, ''Robbo's World Tonight'': Over the years Robertson also presented radio programs on
6VA,
6TZ,
6IX,
2UE,
2GB,
2SM and
ABC Classic FM, as well as TV station
STW-9 and
Network Ten. In 2006 he returned to national TV screens on the
ABC Television show
Agony Aunts. but returned to 3 pm to 6 pm on weekend afternoons, and later the 2UE
Nights program (8:00 pm to 12:00 am). == On-air personality ==