I found a solution for shuffling videos between multiple YouTube playlists, in case anyone is in a rare situation where they need to do this. For some reason, YouTube caps the video count at 200 when you embed a playlist on another site, though the playlist may contain way more that 200. Embedding playlists also disables the shuffler.
I like to listen to some of my playlists at work, but streaming directly on YouTube is rather slow; embedding the playlists on a plnkr.co page is my workaround…but that brings the no-shuffle, 200-video-limit into the mix (har har). But with this randomizer, you can shuffle videos between any playlists, even from different users. There’s probably a way to do this programmatically using YouTube’s APIs, but I didn’t have the inclination to spend the time on it.
Here’s the permalink for my three playlists. Here’s the permalink for my four playlists. Up to five playlists now! Shuffle them here. A few Youtubers that provided a lot of the songs in my playlists were deplatformed, most notably Supradarky (though he’s now starting up a new channel with the same purpose). I am down to four playlists now, so here is the new link to shuffle them—though lately it hasn’t been working at all. I’ve consolidated everything into one playlist. since I don’t embed the playlists anymore, I don’t run into the 200 video limit. The playlist can still be randomized in the shuffler…when it works, that is.
It’s also neat that the page title changes with each video, so if I hear a song I’m not familiar with, I just have to hover over the browser tab in Chrome to see the title.
Happy shuffling.