It doesn't surprise me that all you know about the Koch brothers is that they sponsor PBS.<quoted text>
For some reason they sure got a hard on over the Koch brothers.
The only thing I know about the Koch brothers is that they sponsor some PBS programming. What horrible people.
Sure, the Koch's will spend a little every year for charities that make them look good.
Did you know that the Koch's threatened PBS about a documentary about themselves that was set to air on PBS? The Koch's didn't like that the documentary and PBS pulled it. ""David Koch, whose political activities are featured in the film, happens to be a public-television funder and a trustee of both [New York PBS member station] WNET and [Boston member station] WGBH. This wasn’t a failed negotiation or a divergence of visions; it was censorship, pure and simple.”
The Koch's don't want free speech. They have the money and power to block free speech.