German Broadcasting Archive

The German Broadcasting Archive (Deutsches Rundfunkarchiv; DRA) is a non-profit foundation supported by the ARD. It was founded in 1952 as "German sound archive". The DRA covers essential aspects of the development of German broadcasting. Today it has two locations: Wiesbaden and Potsdam-Babelsberg (formerly Berlin-Adlershof).

More information on the Wikipedia page.

The website is.