NIH VideoCast broadcasts seminars, conferences and meetings live to a world-wide audience over the Internet as a real-time streaming video. Events are recorded and made available for viewers to watch at their convenience as an on-demand video or a downloadable podcast. The National Institutes of Health (NIH) is an agency of the United States Department of Health and Human Services and is the primary agency of the United States government responsible for biomedical and health-related research.