5dimes buddy!
Olympic (no longer available to U.S.) and Pinnacle have 1st quarter lines as well and a few other books that I check out. The first quarter lines come out the day of the game. I've never seen them come out earlier.
*****I hope to have a big play on September 11, which is the opening day of the NFL season as well as the anniversary of the terrorist attacks. It is the last day of the WNBA regular season and the oddsmakers usually are off on a game or two. There is one game I will jump on when the line comes out on September 10. This situation has been profitable in past years.