The station (Polskie Radio Program 3 or "Tr贸jka" in short) is a niche one but also a cult one: it's been always targeting intellectual circles, had their cult presenters who worked there for >40 years and was allowed slightly more - like playing Western music - even during communism.
Since PiS has taken control they kicked 50 people from the Polish Radio and replaced them by right-wing pro-government bloggers.