I'm using a feed to receive special YouTube feeds organized via playlists. Unfortunately, the URL is not included in the description field, but I can get the videos to display by including the source URL on post.
This works fine except since the URL is not in the post area in the editor, the YouTube thumbnail grabbers I have tried don't retrieve these thumbnails.
Does anyone know a way I can fetch the featured image through the published version of the post? It needs to be automated because I have way to many post items to adjust them manually.