I'm pretty sure there is a rule where you can't show games during certain hours on Saturday. I believe it's part of one of the TV contracts. I know we've had Saturday games in the past where they've said our Rebelvision or whatever would pick up the game at a certain hour.
I'm pretty sure it's an SEC rule, and I think it's related to the 3 PM time slot since that's the typical FSN game of the week.