I agree with Turner for baseball times, 6PM for football (unless a major network puts us in a nationally televised 2:30pm game, due to our high future national appeal), and 7PM for basketball. I like to catch a meal before basketball games, so I prefer they stay at 7ish. I can also get over from BR in time for a weekday game.
I definitely prefer the 6PM football games over 4PM. 4PM stunk. 6PM allows for plenty of tailgating, people coming from work, and the game ends at a reasonable hour, even for families (come on, it's Saturday night). I have heard people complain about having young kids and the game times. In BR, a Saturday night also generates about $50k in babysitter revenue. Someday, UL football is going to have that problem as well (I hope), since no one, for any reason, is going to miss a game if they can possibly figure a way to get there.