I accidentally clicked "Watch Later" on a video in Youtube. I tried to delete it, but I couldn't figure out how. I searched around online for instructions, and someone said to add another video, click one, click "show playlist", and put your mouse on the thumbnail of the video you want to remove and click the "x" that appears.

That is NOT working for me. There's no "show playlist" button anywhere that I can see, and now I have three videos that I don't want to watch in "Watch Later" instead of one.

Does anyone know how to fix this? Is there a rule I'm missing, or another way to fix it? How do I delete videos from "Watch Later" on Youtube?