On February 29, 2016 I received Special Event (Free) Radio 29 on +-6321 kHz. This station is only every 4 years in the air on the leap day. A short recording of the broadcast can be heard here: Radio 29 on 6321.3 kHz 29.02.16 – 14.00 UTC.mp3.
Special and also surprisingly was the broadcast in Slow Scan Television (SSTV).
The address for reception reports was radio29(at)gmx.net.