CableCARDs are one way. The cable company can not read anything from them. So there is no worry about getting caught. That being said you are right that they are technically stolen, so if you have a moral objection to that then this isn't the way to go. However he is NOT stealing service. The card is simply providing a map between the TiVo guide data and the frequencies. He can already tune all the channels he'll be able to get. The card simply allows them to be associated by the TiVo so they can be recorded properly.