Phew! Landscape video is here for Periscope. I thought we were doooomed! In all seriousness :)
Periscope Adds Facebook Sharing, Support For Landscape Broadcasts Ahead Of Its Apple TV App | TechCrunch
http://techcrunch.com/2015/09/10/periscope-adds-facebook-sharing-support-for-landscape-broadcasts-ahead-of-its-apple-tv-app/#.pxtpmj:QGeJ