This article explores frame building in Scottish television coverage of the 2014 independence referendum. It uses content analysis of news and current affairs coverage and semi-structured interviews with broadcasters and their sources to explain how factors internal and external to the media may be specifically connected to the prominence of generic issue and game frames in the coverage. It argues that broadcasters' perception of their role in this event and the powerful influence of political sources were factors that encouraged policy-focused coverage, while the journalistic routine of balance and media organizations' perceptions of what would attract audiences favoured the strategic game frame.