As someone else mentioned get SIRIUS. The sportster is what I have and you can record/pause it without any problems.
However, the SIRIUS feed is actually behind the NFL Sunday Ticket feed through DirecTV. So I have to pause the football feed by about 10-12 seconds and then they are sync'd up. It's always great to have a penalty on the opening kickoff and use that as a way to sync up (get the sound of the penalty while watching the official speak).
I have been doing this since the end of the 2007 season and I prefer it alot over the TV broadcasts, although Henderson was sitting way to close to the mic last week and everytime he screamed it was bad feedback.
Oh, and if you need to pause, good luck. Because you have to pause both . I have been meaning to get one of those Logitech remotes that will pause both at once.
This is why I dont listen to WWL during the games anymore. I used to love turning down the sound, but now the tv is so far behind the radio its ridiculous. Anyone get the games from an off-air hd antenna ? If so, is it still behind the radio by much ?