[PatK]

I want the fanart to include shows that I don't have in my media library

Gads, the last time I checked At least 487 original scripted programs aired in 2017, and slightly less in preceding years. The artwork would easily eclipse a million and wipe out your storage along with slowing Kodi to a crawl. You could make a proper folder just for the name you want, and either use trailer.avi or a small stub video named accordingly and scrape that.