Nancy R:Can you watch the videos later or do you have to watch them live on Periscope?
You can watch later but not a lot later. I don't think they stay available for that long.
No, no -- if the user puts "#save" in the titles, they stay forever. You can't see it in the actual title as a viewer, but you can click on their name and get the side menu (on a computer, don't know about phones!!) and if you see older videos from even a few days or maybe weeks ago, you know that person uses the save command and the periscopes will be there later for viewing.
That last periscope link posted for desert show, wef? or whatever it was, he does have a list that goes back a few days, so his will be available.
But yeah, if they don't do the #save the videos are only for 24 hours. Fortunately more people are learning about that coding!!!!