def METHOD_NAME(self):
    """ Set starting position, start scrollbar updates, unhide overlay. """
    # set starting position, if needed
    if self.start_pos:
        self.do_set_time(self.start_pos)
    # ensure the scroll bar is updated
    GLib.idle_add(self.do_update_duration)
    GLib.timeout_add(self.update_freq, self.do_update_time)
    # ensure the overlay is visible (if needed)
    if not self.media_type.startswith('audio'):
        self.sink.props.widget.show()