Giving your credit card number to TiVo is dangerous. TiVo overcharged me and then told me that company policy is that if the customer doesn't catch the overcharge within 3 months, then TiVo gets to keep the money they overcharged. I had multiple TiVo devices for which TiVo was charging my credit card for monthly or annual fees. I recently realized that one of the devices for which I was being changed $137 each year was a device I for which I had requested service to stop at the same time that I started TiVo service on the replacement TiVo DVR. TiVo charged me 3 annual payments (totaling $511) on a TiVo device that I threw away 3 years ago. TiVo could tell from their system that it was in fact true that the device for which they were charging annual renewals had not connected with TiVo for 3 years. Even though TiVo agrees that they had charged me for 3 years of service that I did not receive, they insisted on keeping my money. It is going to cost me far more than $511 to get my $511 back, but I am still going to do it. TiVo makes it difficult, but always find a way to pay TiVo in a way that they don't keep the credit card information allowing them to charge the card later.