Czwórka

==Polskie Radio Program IV==
===1976–1994===
===1994===
This logo was used only for nine months, before the radio station was rebranded as Polskie Radio BIS.
==Polskie Radio BIS==
===1994–2005===
===2005–2008===
==Polskie Radio Euro==
===2008–2010===
==Czwórka==
===2010–present===
====2010–present====
*Polskie Radio Czwórka launches on 2 August - wirtualnemedia.pl, July 26, 2010
On 1 September 2016, Czwórka became a digital-only radio channel, as on analogue FM frequencies, it has been replaced by Polskie Radio 24.
====2017–present (secondary)====
Category:Contemporary hit radio stations
Category:Youth oriented
Category:Radio stations in Poland
Category:Poland
Category:Polskie Radio
Category:1976
Category:1994
Category:2008
Category:2010