Here is a song that uses video in an alternateEnclosure tag.

If you click on the green TV icon you can switch between audio and video.

Water is Sound by Jimmy V

https://v4vmusic.com/?song=cmhn308yg0017od0ih7wm1v3m

Here is the feed
https://music.jimmyv4v.com/bands/jimmy-v/jimmy-v-collection/jimmy_v-jimmy_v_collection-rss.xml


If you don't see the video just scroll the screen a bit and it should show up this is a strange bug that I'm not sure how to fix 🙂