Just add on a cheap TV tuner /capture card as I did. I got mine from futureshop.ca here in Canada boxing week for a steal at $50 Canadian which is like $32 US dollars.
Mine is a Win TV Go tuner/capture card. It captures video and allows me to watch cable on my pc as well as FM radio stations. ATI makes a couple of versions , the ATI TV Wonder VE and the ATI TV Wonder, the VE is the value card.
It is great having the ability to watch and record TV shows to my hard drive if I want as well as capture video from my camcorder.
Cisco Kid