INTERACTIVE TELEVISION SYSTEM

摘要

A method comprising: determining a hierarchical time structure for a received television channel relative to its main video content, the hierarchical time structure comprising a plurality of nested levels in the form of a lowest level and at least one higher level ordered from lower to higher level, each level comprising a plurality of time windows, each time window of the lowest level corresponding to a different respective one of said items of interactive content, and each time window of each of the one or more higher levels corresponding to a different respective plurality of the time windows of its next lower level in the hierarchical time structure; and receiving user operations at a user terminal. A first one of said user operations accesses on screen the item of interactive content associated with a current lowest level time window, and at least a second one of said user operations generates a list of the items of said interactive content corresponding to a plurality of lower level time windows within a current higher level time window.