RTL Radio began broadcasting as the German service of Radio Luxembourg on 15 July 1957. Along with the Saarland-based pirate radio Europe 1, Luxembourg interfered with the non-commercial monopoly imposed by the German states since broadcasting first started in the country. Apart from advertising reaching German radios for the first time, RTL also introduced Germans from both East and West to rock-and-roll music which contrasted to the classical repertoire that dominated mainland services.
In 1990, Radio Luxembourg was renamed RTL Hörfunk. On 1 July 2015 RTL Radio branded itself RTL Radio – Deutschlands Hit-Radio and moved its studios from the City of Luxembourg to Berlin.
RTL Radio has slots on analog and digital cable, and transmits digital signals via the Astra 1L satellites.
^ abjoint venture with Amperwelle Studio München Programmanbietergesellschaft, Axel Springer AG, Burda, Studio Gong, m.b.t. Mediengesellschaft der bayerischen Tageszeitungen für Kabelkommunikation, Medienpool and Radio Bavaria Rundfunkprogrammgesellschaft.
^joint venture with Verlagsgesellschaft Madsack, Studio Gong Niedersachsen and Brune-Rieck-Beteiligungs.
^joint venture with Axel Springer, Heinrich Bauer Verlag, Lühmanndruck Harburger Zeitungsgesellschaft and Morgenpost Verlag.
^ abjoint venture with Amperwelle Studio München Programmanbietergesellschaft, Axel Springer AG, Burda, Studio Gong, m.b.t. Mediengesellschaft der bayerischen Tageszeitungen für Kabelkommunikation, Medienpool and Radio Bavaria Rundfunkprogrammgesellschaft.
^joint venture with Verlagsgesellschaft Madsack, Studio Gong Niedersachsen and Brune-Rieck-Beteiligungs.
^joint venture with Axel Springer, Heinrich Bauer Verlag, Lühmanndruck Harburger Zeitungsgesellschaft and Morgenpost Verlag.