Genres for episodic series
To reduce duplication of the existing data, please only add Genres to the parent series page and not an individual episode page.
It would be more correct to say that it isn't possible to add a genre to an episode.
What would be helpful is some words on whether a genre should be added to a series if it doesn't apply to all episodes. Perhaps similar to what it says about keywords, "Keywords submitted to the TV series page should be relevant to and describe the entire series."