Ori, While the Open I/O interfaces in theory allow you to set any format programatically, 720p/23.976 is not a standard broadcast format, and as such Media Composer does not directly support it. If you are using an I/O box like a DNxIQ or similar, Media Composer actually set the format to 720p/59.94 when you're using a 720p/23.076 project. The same