M4V files added as SD when they are 720P

If I download an MKV Drone adds it to a series as HDTV-720P. If I convert it to an M4V file for Apple compatibility, without recoding it (so it is still the same file in a different container) Drone adds it as SDTV. Is there anyway to keep it as HDTV and convert it?

Add the quality to the file name. m4v defaults to SDTV if the quality can’t be read in the file name. A future release will use media info to get the quality before falling back to the extension.