1. Radio broadcasting service operated by private companies or stations funded primarily through advertising revenue rather than public funding
Commercial broadcasting has dominated the radio industry since the mid-20th century.
A radiodifusão comercial dominou a indústria de rádio desde meados do século XX.
2. The transmission of radio programs by commercial stations for profit
The company invested heavily in commercial broadcasting infrastructure.
A empresa investiu fortemente em infraestrutura de radiodifusão comercial.