A television system is provided which includes a display screen connected to or integrally formed with a broadcast data receiver (BDR). The BDR receives data from a broadcaster at a remote location and decodes the data to form video, audio and/or auxiliary data. At least part of the decoded data is used to generate first and second windows (4, 6, 8, 20, 22) on the display screen and one or more of the windows contain user selectable options. Upon user selection of a particular option (24) from the first window, at least a part of the first or second windows (4, 6, 8, 20, 22) are reconfigured, such that the at least part of the first window covers or disables a remaining part of the first window and/or a part or whole of the at least second window.