Since the TVDB ID (and IMDB ID) are captured in the metadata lookups, can it be used as a variable in the custom renaming? I didn’t see it listed in the support docs, so I assume it currently isn’t available.
Great suggestion. It can now be done with today’s 2.5.8 beta build. See the documentation page for custom renaming on how to access that information. We’ve added support for TMDB ID, IMDb ID and TVDB ID for custom renaming (it was already there for custom commands)