Bit late getting this info out due to being on travel to Russia (where I got it from the source). MAI-75 will be transmitting SSTV imagery and planning to use mode PD 120 on August 15 and 16 for a few orbits each day that pass over Moscow. MAI-75 scheduled operations times for Monday were scheduled to be from 11:05 - 15:35 UTC and Tuesday, Aug 16 are 11:10 - 16:45 UTC. Stations receiving images can post them to ARISS Gallery.
Update - Aug 16
Getting reports that the ISS is transmitting mode PD180 instead of the announced PD120.