Transmitter station for transmitting, and receiver for receiving a plurality of television programs via respective transmission channels. A teletext page with tuning data, which are representative of the transmission channels used by the transmitter station is transmitted by one of the programs, for...http://www.google.com.au/patents/US6025887?utm_source=gb-gplus-sharePatent US6025887 - Transmitter for transmitting tuning data in a television signal and receiver for receiving same