In 1989, Biggar began hosting the children's morning program Agro's Cartoon Connection. She remained on the show for a number of years, finishing up at the end of the 1995 season, before being replaced by Terasa Livingstone
In 1994 and 1995, she became a reporter on the travel show The Great Outdoors. This was followed by a move to the Nine Network as a regular on a relaunched version of In Melbourne Tonight with Frankie J. Holden.
In 2000, she became a reporter on Network Ten's morning show Good Morning Australia. After the program ended at the end of 2005, she joined the replacement show 9am with David & Kim, where she was also a reporter. She remained on the show until 2009.
- Bucklow, Andrew (16 May 2014). "Jamie Dunn reveals what life's been like as the voice behind Agro". News.com.au. Archived from the original on 5 April 2015.
- Knox, David (11 March 2011). "Agro & Ann-Maree Biggar to reunite". TV Tonight. Archived from the original on 21 April 2015. Retrieved 29 March 2015.
- Cook, Margaret (26 January 1995). "Having fun in the Great Outdoors". The Age. p. 8. Retrieved 24 May 2021 – via Newsbank Australia.