A method is provided for synchronising visual and audio data for a television system. The television system includes display means for displaying visual data thereon and audio means for allowing audio data to be sounded via said system. The method includes the steps of undertaking one of displaying a visual indicator on said display means or sounding an audio indicator via said audio means and, after a time delay or period of time, undertaking the other of displaying the visual indicator or sounding the audio indicator, the period of time between the display of said visual indicator and the sounding of said audio indicator being adjustable by a user of said television system using synchronisation means.