Football game times, unless it's a weekday game or something else special, are typically set two weeks in advance by the TV contracts. The first couple weeks of the season should be shaken out by sometime in the summer, but it's still too early.
All we know is that the La Tech game will be on ESPN or ESPN2, and I'd be willing to bet the SE Louisiana game will start at 6:00 PM because a) there's no way in hell it'll be on TV, and b) 6:00 is when September non-TV games start, unless Greg changes the policy.