The power that components use when off is called 'vampire electronics'. There really is no such thing as quick start electrical things, they are really always on, just at a low use level and with a TV the picture and sound are off, but the tube is on. With flat panels the consumption is almost insignificant, but it is there. All the always plugged in electronics in the modern house do use a noticeable amount of power, that is why I turn off the UPS when I go out.