Help! I uploaded a video to the wrong Youtube channel

Short of deleting the video from one channel and re-uploading it to the other, is there a quicker way to move it to the correct channel?

Nope. Only way to put it on a different channel is to reupload it to that channel.

You can’t even replace a video with a HQ version to keep the views and comments. Sucks. Vimeo lets you do that.