I had the similar problem. After some investigating the incompatibility was the digital TV resolution would not lock into the WDTV Live resolution. Most digital TV’s are manufactured for all the available resolutions used worldwide. Before you discard those HDMI cables, check your digital TV setup and check the resolutions available are compatible with the HDTV Live output resolutions. It may be a simple case that the digital TV resolutions require changing to suit the WDTVLive generated resolutions.