The British Broadcasting Corporation (BBC) is a British public-service broadcaster. Its headquarters are at Broadcasting House in London and it is the world's oldest national broadcasting organisation, and the largest in terms of number of employees. The BBC is established under a Royal Charter and operates under its Agreement with the Secretary of State for Culture, Media and Sport. Its work is funded principally by an annual television licence fee charged to all British households, companies, and organisations using any type of equipment to receive or record television services.