Clarence... Pretty sure that this is entirely wrong: 'All that said, the presumption that sports audiences are overwhelmingly white — "appealing to an old, white demographic" — and therefore willing recipients of white casting in shows doesn't add up for me.'
Pretty sure that the old white demographic was the author working back from the exceedingly white shows CBS is airing in primetime. The inference being that if those lily-white shows are really popular they are probably popular with a really white audience. I don't think there was anything said about the audience watching sports. In fact this whole piece has very little to do with sports. Sports is just where the promos were happening.
Also, TBS is a cable outlet. They aren't using up broadcast spectrum that's part of the public good.
That's your takeaway from this, Clarence? Or did you just not read past the first sentence? Also, while the national semi-finals are on TBS, the final is still on CBS, so it's not entirely true that "the Final Four is on TBS"