Unlike most other countries' public broadcasting organizations – which are either national corporations (such as the BBC and France Télévisions / Radio France), federations of regional public-law bodies (for example, ARD, SRG SSR) or governmental and member-based institutions with their own channels and facilities (such as PBS) – those in the Netherlands are member-based broadcasting associations that share common facilities. This arrangement has its origins in the system developed in the Netherlands early in the 20th century, known as "pillarisation". Under this system the different religious and political streams of Dutch society (Catholics, Protestants, socialists, etc.) all have their own separate associations, newspapers, sports clubs, educational institutions, and also broadcasting organizations.