Inter-MAI will be transmitting SSTV on April 2 (15:05-18:30 UTC) and April 3 (14:15-18:40 UTC). This is an experiment of the Moscow Aviation Institute so folks in range of Moscow will have the best chance as will folks along the orbits during the indicated time frame.
Additionally, SSTV will be active world wide as part of Cosmonautics Day (April 12). Images will be related to the Interkosmos project (https://en.wikipedia.org/wiki/Interkosmos). Detailed times are still being worked into the schedule and will be update as they become available but the dates will be from April 11-14. This should allow for worldwide reception of images over multiple days.
Both operations will be conducted on the standard 145.800 MHz downlink. Mode is expected to be PD120.
Please find here my ISS SSTV reception:
Images received during ISS pass: