CBS Singleheader (Welcome Utah! Sorry again Austin/SA, Corpus looks good!)
FOX Doubleheader, Game 1:
FOX Doubleheader, Game 2:

FOX Doubleheader, Game 1:

FOX Doubleheader, Game 2:

http://www.gribblenation.net/personal/jp/2005maps.htmlWhen are the maps updated?
Usually Wednesday night or Thursday afternoon for that weekend's games. Updates and corrections on Friday if needed.
What do the white areas mean?
Welcome to the world of blackout rules. The short answer is: no game at all. This can be due to one of two rules: a) no games can air at the same time as a local team's home game on another network, or b) if a game is blacked out because it doesn't sell out, the network with the doubleheader can only show one game. I don't agree with them either.