The apparent advantages of this model is that services related to public interest could be sustained. In terms of profitability, public interest programs, for example, over-the-air television, may not be as attractive as commercial ones in the provider perspective, but they are nevertheless beneficial for the society. Therefore, these services are  often implicitly enforced by the regulator through the license agreements.
The advantages of this model are that public interest services can be sustained. In terms of profitability, public interest programs, such as over-the-air television, may not be as lucrative as commercial ones from a provider's perspective, but they still benefit society. Therefore, these services are often implicitly enforced by the regulator through license agreements.