I currently have an S3 with two cable cards (Comcast) in my family room. It works great. I would like to add two more S3s -- one to my master bedroom and one to my basement. (Right now I am using the Comcast-supplied Motorola boxes and I hate them.) I have a few questions regarding this endeavor: 1. If I add two more S3s, do I need to have Comcast come out to install four more cable cards? I assume that is the case if I want to watch/record two shows on each S3, but if I am willing to use the basement and/or bedroom unit just for watching what is on the family room S3, is there a way to network them? Will Comcast charge for each additional CC? 2. If I do go with a total of six cable cards, will there be an issue with bandwidth? It is conceivable that I could be simultaneously recording six HD shows and also surfing the internet with my cable modem. How much can the cable support? 3. I am one year into a three-year contract with Tivo for my first S3. Is there an additional charge for adding more Tivos? Thanks in advance!