 Elliott had worked at Channel 7 Adelaide hosting "Long-Weekend" movie marathons for PD Lynton Taylor.When Taylor joined the Nine Network in Sydney in 1973 he appointed Elliott as one of the 5 regulars of "Celebrity Squares" along with Bert Newton, Don Lane, Chelsea Brown, and Ugly Dave Gray, who gave Elliott the nickname of Malcolm T-shirt Elliott.Elliott also worked for the ill-fated mellow rock 87-2GB in 1976–1977, 2KY 1980 and 2UE 1983–1984,1988–89 and 1992–2004.