It's up to the affiliate how they will handle it. I watch on NBC but my cable system has a CBS affiliate where I tape the show just in case something happens on the NBC station. I can also pick up that CBS affiliate with an antenna (though results have not been consistent). If I had to, that means I could watch "Jeopardy", on a digital channel. People with regular cable in that area won't have that and if they don't have an antenna or don't live where it would work, too bad. But that's how the CBS affiliate in that area is doing it. The same with soaps during the ACC Tournament--and where I live both CBS affiliates are airing that. The prime time shows at least are available to be taped in the middle of the night.
But next week, the NCAA Tournament is on all CBS stations.
But next week, the NCAA Tournament is on all CBS stations.