Systems and methods of content sharing on a display are provided by establishing connections between a receiver, moderator client device and a plurality of member client devices via a local network that includes at most one node in the communication pathway between any two endpoints in the network, such as a display and one of the plurality of member client devices. The moderator client device transmits a request to promote a first one of the plurality of member client devices to the receiver, which then receives and transmits to the display content from the first one of the plurality of member client devices. The moderator client device also may monitor the screen displays of the plurality of member client devices; enable the receiver to simultaneously show on the display content from two or more of the plurality of member client devices; request transfer of data from the plurality of member client devices to the moderator client device; or delegate moderator authority or control to a subset of the member client devices.