TV/Movie Metadata - Firefly/Arrested Dev.

I just can’t seem to be able to import metadata for Arrested Development and Firefly. I’ve told Sapphire to Mark to Re-Import and also Mark to clear metadata.
During the next import, it blazes right through the folders and imports nothing. Also tried having it fetch data according to the folder name it’s in instead of the filename … no such luck. Was anyone else able to get data for these shows? Or is metadata just not available for them?