Content management systems, methods, apparatus and user interfaces

An apparatus for managing content supplied from a plurality of sources in a multicast stream, the apparatus including:

• a plurality of player objects, each player object paired with a constituent stream of the multicast stream;
• and
• at least one viewing object coupled with one of the player objects to display content from the stream paired with the respective player object.

A graphical user interface for displaying content supplied from a plurality of sources in a multicast stream, the interface including.

• at least one viewing object coupled with one of a plurality of player objects to display content from the player object, each player object paired with one of the streams in the multicast stream;
• and
• at least one user input field to receive input from a user to couple the at least one viewing object to a different player object to cause the viewing object to display content from a stream paired with the different player object.