Patent ID: 7437749

Claim:
A method for use in an interactive television system, the interactive television system including a system manager coupled to a plurality of subscriber terminals, comprising the steps of: receiving a first user input at a subscriber terminal indicating a choice for one of a video signal and first operation data, wherein the first operation data includes a plurality of screens; generating a screen of first operation data responsive to a command, wherein the screen of operation data is generated by a local screen character generator; saving a screen of the plurality of screens to memory; determining whether the screen of the plurality of screens saved into memory is directly accessible or accessible only through other screens; if the screen of the plurality of screens saved into memory is only accessible through other screens, indicating that the screen of the plurality of screens saved into memory is not to be deleted from memory; and displaying at least one of the video signal and the screen of the first operation data according to the user input, wherein the first operation data is stored in at least one of a screen generator coupled to the system manager and subscriber terminal memory.