Televised debates remain a key point in elections, during which there are vast amounts of online activity, much of it conducted through personal devices or second screens. Amidst growing recognition of the influence of online political discourse, we explore the issues and opportunities arising at this specific point in election cycles, using a design-led multi-stakeholder approach to understand both the audience and expert perspectives. Workshops with debate viewers highlighted six key issues and possible solutions, which were encapsulated in four speculative design concepts. These were used to prompt further discussion with political and media experts, who were able to identify the implications and challenges of addressing the opportunitie...