An interactive television system includes a plurality of client devices
connected to a server through a network. The client devices display
broadcast contents based on received broadcast data. Icon buttons are
displayed superimposed on the displayed broadcast contents. Each icon
button represents a different icon. When one of the displayed icon
buttons is selected at one of the client devices, then the client device
sends a request to the server, asking to execute, at another client
device, an icon represented by the selected icon button. When the server
receives the request over the network, the server sends icon
identification data that corresponds to the icon over the network to the
other client device. The other client device executes the icon based on
the received icon identification data.