A Periscope broadcast is a live video stream that allows viewers to engage directly with the broadcaster and other viewers through the use of real time commenting and hearts. A stream can be as short or as long as you want (or your battery and service allow). Broadcasts are by default public and visible to everyone on our platform. You can, however, opt to make your broadcast private if you wish to only make it visible to a select group of users. Related: See “Who can see my broadcasts?” for more information on who can view your broadcasts.