Thanks. I wasn't really expecting any further work to be done -- I was just adding an additional bit of data to the thread for those who might read it in the future. Without proper test equipment, it's going to be impossible to get a true diagnosis of the issue. The only thing I know for sure is that the Edision HDMI output is accepted by every TV and A/V receiver I have -- only the Blackmagic Design devices have a problem with it. I will try posting this information in their support forum.