Television tuner, method and computer program product

摘要

A television tuner comprising a digital television processor operable to receive a digital television transmission including multiple digital components for output as an audio-visual television signal, and a first user input signal, wherein the digital television processor is operable, in response to the first user input signal, to disable an audio component of the audio-visual signal, and generate an action trigger signal after a first predetermined period of time from receipt of the first user input signal.