Facebook don't really like you escaping their "ecosystem", and so embedding their videos on other sites isn't particularly easy (I think you have to use an iframe). They really want to keep you on their site, all the time.
What I tend to do is to create a totally separate recording of each Pop-Up show, and embed that version here, for members only. The public Facebook version gets deleted after a week or so, the non-public version stays up here for some weeks longer. As far as the last show is concerned, I didn't keep a local copy, so the Fb version is the only one you can view. And it will be gone in a few days.