A television control system is for selecting a television channel corresponding to a preassigned channel tuning designation. A tuner receives multi-channel input signal, and in response to a processor signal, tunes out all but one selected channel. A memory stores at least one operator-assigned channel...http://www.google.es/patents/US5045947?utm_source=gb-gplus-sharePatente US5045947 - Television receiver having memory control for tune-by-label feature
Television receiver having memory control for tune-by-label feature