Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Ostdeutscher Rundfunk Brandenburg (ORB East German Broadcasting Brandenburg), based in Potsdam, was the public broadcaster for the German federal state of Brandenburg from 12 October 1991 until 30 April 2003. It was a member organization of the consortium of public-law broadcasting organizations in Germany, ARD. ORB merged with the Berlin public broadcaster Sender Freies Berlin (SFB) on 1 May 2003 to form Rundfunk Berlin-Brandenburg (RBB).