Just all the junior detectives here know, I have a card in my closet that I could put in my PC and use to watch and record anything that's on TV. Only cost me about $80, but I don't use it anymore. I did use it a lot before I moved to stream the games to myself while I was at work. My ISP in Baltimore doesn't have quite enough upstream bandwidth for that to be feasible anymore, though, and it's a little harder to do with DirecTV than with cable anyway, so I just run gameday and follow the game threads now instead.
