The creation of the Special Broadcasting Service (SBS) was closely related to Australia's population policy. Through its operation and practices, the SBS has been working to define, fertilise and enrich the notion of 'multiculturalism'. Initially, the SBS aimed to represent and voice the ethnic groups. Now, it has become the bridge to a wider, different world, which has not been well provided by other electronic media in Australia. All Australians can have access to the service of SBS. This paper looks at the development of SBS. It focuses on the SBS's innovative practice for niche establishment and for its becoming the strategic site of Australian independent filmmaking. This paper aims to show that the changing notion of 'multiculturalism' may create challenges for the broadcaster to fulfill its Charter responsibilities.