Automatically or manually switch between four different HDMI input sources for easy, fast selection of video content for display or projection in classrooms, conference rooms, control centers and public venues where reliable high-definition video is needed. The switcher allows for plug-and-play installation with simple HDMI cable connections. Auto switching mode enables completely automatic operation when video sources are activated. Manual switching is accomplished via the built-in control button. Control is also available via the included handheld IR remote or via an RS-232 command set for integration with a control system.