Design a video distribution system for Trent University lectures. The two use cases would be first, where students could watch lectures (real time or stored video), the second would be where a live...

Design a video distribution system for Trent University lectures. The two use cases would be first, where students could watch lectures (real time or stored video), the second would be where a live lecture is broadcast to other classrooms on campus(es), in real time. Key issues are where data is housed, if the system should have a content delivery system (and if so, where might it make sense to put some of those nodes), if the networking should be centralised or decentralised.