On this day… 13 Feb…
Nothing before 1993 so far when the autoreverse service of Radio Argus is still on 819 kHz in London, from (IIRC) Hurley House, Kennington.
As this date is World Radio Day I am surprised there are only 4 entries I have gathered so far, and all the rest are after 2000.
If anyone can add to this please get in touch..