This practice insight explores the potential of broadcast television news and current affairs programs for science communication in everyday viewing environments. Using the Japanese news program Shins¯o H¯od¯o Bankisha! as a case study, we assessed its impact on public knowledge of “blue carbon”, a relatively new scientific topic. The program aired on May 28, 2023, reaching an estimated 2.76 million viewers in the Kanto region. A survey revealed that viewers exposed to “blue carbon” through the broadcast showed significant knowledge gains compared to non-viewers, regardless of their interest in science. This included individuals with low scientific interest, a group often excluded by traditional science communication methods. Despite the rise in popularity of digital media formats, broadcast television news and current affairs programs showed their unique ability to disseminate scientific knowledge to diverse audiences, even in today’s multitasking environments. These findings highlight the enduring relevance of television in science communication and its potential to complement digital platforms for broader public engagement.

This collaborative essay details the reflections of a science communication practitioner and a media communication scholar on their joint research into science communication through Japanese commercial terrestrial television. It emphasizes their unique perspectives as an insider and outsider in their respective fields, suggesting a method to strengthen the collaboration between academic research and its practical application in science communication.