In this fascinating two paper session we look at streaming from both ends; at one end AWS shares its engineering insights and experiences in facilitating streaming at “mega-concurrency scale” where in India, cricket drives huge traffic surges (10 million connections in 10minutes) and where a record 59 million concurrent connections is held. At the other end the BBC has been studying actual day to day user experience of mobile services whilst on the go, using their BBC Sounds app - correlating network/radio properties and CDN logs, to determine the concept of a “service coverage” area.