NDR

NDR (Norddeutscher Rundfunk) is a public radio and television broadcaster based in Hamburg, Germany.

NDR1 Niedersachen is a local station broadcasting to the state of Lower Saxony and based in Hanover.  They were playing Oldies from the Bay City Rollers, Cliff Richard and Roy Orbison when listening live while making this post.

NDR1 Welle Nord broadcasts from Schleswig-Holstein, the northernmost state in Germany. 

NDR1 Radio MV is a local station for Mecklenburg-Vorpommern.

NDR2 plays contemporary music for a younger audience.  I heard Mr. Probz, The Avener and John Waite while typing this post.

N3 is a television channel presented in cooperation with Radio Bremen.

NDR4 was the News arm of the network and has been renamed NDR Info.

Not sure what Radio 3 or NDR3 is (or was) but the violin indicates it may have carried a Classical music format.  ORB was Ostdeutscher Rundfunk Brandenburg (East German Broadcasting Brandenburg) while SFB was Sender Freies Berlin (Radio Free Berlin.)  SFB and ORB merged in 2003 to form Rundfunk Berlin-Brandenburg.

NJOY plays commercial-free music aimed at listeners under 30.  This branch of NDR began broadcasting in 1994.