"[Making a prank call to the British Embassy in Berlin] Ah, is this the British Embassy? (Yes.) Ah, good evening. I am calling to warn you of an imminent Dalek invasion. (I see, sir. Can I get your name and address?) The Doctor, 325 Gallifrey Centre! [Hangs up]"
January 1, 1970
https://en.wikiquote.org/wiki/Dead_Ringers