Playback Reporting Custom Query Group By Item Series

[ShadowKindjal 21]

As the title says, I'm using the custom querying feature of the playback reporting plugin to report on the play times of items on my server so I can determine which ones to deleted when I'm running out of space. I know you can filter by ItemType to pull movies or individual episodes, but is there a way to group by an Episodes TV Show/Series name? This is my current query.

SELECT SUM(PlayDuration), ItemType, ItemName
FROM PlaybackActivity 
GROUP BY ItemName
ORDER BY SUM(PlayDuration) ASC;