A method of controlling a television in which a reservation program is registered by a settop box, and the settop box. The method includes the steps of: detecting program guide information from a video signal received by the settop box in response to a user's request for a display of the program guide...http://www.google.com.au/patents/US6336218?utm_source=gb-gplus-sharePatent US6336218 - Method of controlling reservation program by using settop box and the settop box
