Saving videos from others' Photo Stream
I have a Photo Stream that I share out to family. Since the iOS 7 update, I have started adding videos to it. Can any of my family members download videos from the stream like they can the photos? How can I get this to work? I have asked my sister who owns an iPhone 5C to try to download videos, but she said she can't do it. I have an iPhone 5 that I share videos out with. Also, the videos that I put out aren't very long; generally they are less than a minute.
I know that I can open my Photo Stream to the public, but I would rather not do this.
iPhone 5, iOS 7.0.3