I have 2 TiVo's - one is being used like normal. One is hooked up to a TV with no signal (it does, but it's to DishNetwork, and I can't hook it up correctly because it has no actual satellite box). Anyway - the extra TiVo is only used to transfer shows from the other TiVo to it to watch. It does no recording of it's own. Do I still need a TiVo subscription for it?