Der rbb
Rundfunk Berlin-Brandenburg (Der rbb) is an institution under public law (national broadcaster) for the German states of Berlin and Brandenburg, based in Berlin and Potsdam. RBB was established on 1 May 2003 through the merger of Sender Freies Berlin (SFB) and Ostdeutscher Rundfunk Brandenburg (ORB), based in Potsdam, and is a member of the Association of PSBs in the Federal Republic of Germany (ARD).
Aside from its two main studios in Berlin and Potsdam, RBB also has regional studios in Cottbus and Frankfurt (Oder), and regional offices in Perleberg and Prenzlau. RBB also operates ARD's studio in Warsaw; the responsibility changes every five years between RBB and WDR (Westdeutscher Rundfunk). RBB also plays out ARD's digital channels from a center in Potsdam. RBB and WDR are jointly responsible for ARD's television studio in Berlin.