Public service broadcasters are a central part of national news media environments in most advanced democracies. Although their market positions can vary considerably between countries, they are generally seen to enhance democratic culture, pursuing a more serious and harder news agenda compared to commercial media . . . But to what extent is this perspective supported by empirical evidence? How far can we generalize that all public service news media equally pursue a harder news agenda than commercial broadcasters? And what impact does public service broadcasting have on public knowledge? Does exposure to public service broadcasting increase citizens’ knowledge of current affairs, or are they only regularly viewed by citizens with an above average interest in politics and hard news?
The overview of the evidence provided by empirical research suggests that citizens are more likely to be exposed to hard news, and be more knowledgeable about current affairs, when they watch public service news—or rather news in media systems where public service is well funded and widely watched. The research evidence also suggests there are considerable variations between public broadcasters, just as there are between more market-driven and commercial media. An important limitation of previous research is related to the question of causality. Therefore, a main challenge for future research is to determine not only if public service broadcasting is the preferred news provider of most knowledgeable citizens, but also whether it more widely improves and increases citizens’ knowledge about public affairs.