Using the Category metadata property of videos, specifically.

Only "Movie" category shows up under "Movies", and only "TV show" shows up under "TV Show", but can I create other categories, and in doing so, ensure that those with my new category do not show up under either "Movies" or "TV shows" but are only visible via a playlist(s) I generate that populates with the category of my choosing?

TIA,
--hsbrown2