http://www.howtodothings.com/computers-internet/how-to-get-free-cable-tv
http://www.tvunetworks.com/
Bit off topic, http://www.ehow.com/how_4404620_free-cable-television.html
lol we had something similar with our house. Cancelled the cable and internet and it was still on and we weren't paying for it for like a year. They just took the modem and the cable boxes but they left one box and we routed all the TVs through that one.
Some other tips http://www.internetservicedeals.com/blog/71/100-tips-and-tools-to-get-free-cable-tv/