I just stumbled upon this very useful, bookmark-worthy site. It maps the distribution of CBS- and Fox-broadcast NFL games, so you can keep track of what games will be watchable in your area. It’s also interesting to see which games have the larger national draw. On the downside, the site does not help you find any pregame shows that are tolerable for more than 42 seconds. Berman on ESPN, Terry on Fox, and nearly everyone on CBS ain’t it.