I have dtv service with 3 receivers. I want to switch to an older model receiver that has the games on it for my kids. I know I have to call d to activate the old receiver... will they activate the card that is already in the old receiver, or will I have to swap cards with the receiver I'm already using? And will the old receiver (which never had any ppv's ordered) be able to get the 4 ppv's that are preloaded, as in are the slots preloaded onto the receiver or the card itself?