I recently found a way to watch NFL on demand.  Well, sorta.  It's more like "every NFL game regardless of geographical location".  It's not exactly "on demand" in that I can't watch whenever I want; only on Sundays or other times when games are regularly broadcast.  Go to Streaming NFL Games and find the game you want to watch.  Download and install the appropriate software based on the links at the top right of the website.  Click the link for the game you want to watch and voila, you're watching low-quality streaming video.  The way it works is that people with TV tuners in their computers can share their TV channels by using the aforementioned appropriate software.  Then jerks like me who live in an area other than the one that houses my favorite team can use the same software to watch other people's TV streams.  I'm pretty sure it's illegal, but it works for now.  The only [major] downside is that the video quality takes you right back to 1997 and the dawn of dial-up internet (sorry Dad, it's not your fault rural Virginia still has dial-up).  So if you're as angry with NFL TV coverage as me, this might be worth a shot.