I can't tell if they'll re-air it or not, but its available on Discovery On Demand, but if you get a chance 'Killing the Colorado' is one of the best docs I've seen in a long time. Its about the water issues that are going on (and have been for a long time) in the American West. And the issues are many and very complicated. There ain't no bad guys, but there's been many bad decisions by all the players. Its worth a watch, because any water rich state on the edge of this western area is going to be a player. Why? Because that's where most of our food comes from!
Its nice to see Discovery air something that isn't a reality show about nekkid people. I've about given up on them. I only caught this channel surfing on Thursday.
BKB