These blue-sky pronouncements about truth being a public good do not move the discussion forward. "Truth" is socially manufactured (by that I'm not saying that nothing is true or false), and the process of manufacture has enormous costs.
Of course, this is not “free”, but it’s high-quality journalism that’s not behind a paywall.
I have to wonder: how does your public service media cover events that reflect poorly on the Czech Republic's elite and its government? How did it cover the decision to split from your poorer sister state of Slovakia? How does it cover the vulnerability of the Czech elite to blackmail by the Russian intelligence services? How does it cover the historical issues related to the expulsion of Sudetenland Germans from their homes?
Separately, for what it's worth, the US has national public radio, which is a public service radio largely funded by local listener/donors. It is much better than most media here.