Live-Video Search Is Coming to Periscope 

Each day, people collectively watch the equivalent of more than 100 years of live video on the Periscope app. Good luck trying to search through it all—there is virtually no way to do so. But in a few weeks, Twitter Inc., which owns the live-video service, says it will enable users to search for broadcasts by title or by topic, like travel and food. Periscope will include a list of these suggested topics after users tap on the search button in the Global List, the screen that shows the location of the broadcast.

Source: Live-Video Search Is Coming to Periscope – WSJ