I've seen tracks play the maintenance in their track feed crawl during race day "track will be harrowed to 2" after races 3, 5, 7 ... " type of thing.
Kinda like when they announce all those shoe changes, overweights, up front early in the day when you are busy doing other stuff, and can't pay attention, too
If you can't find out they watered the turf overnight with 1" of water, you're left watching the early races. I agree, helpful to know. Best bet that first hour of announcements.