The delay of the planned EVA from Friday to Saturday will impact the planned start of the SSTV experiment planned for February 20. It is not yet known when SSTV might be rescheduled and for how long the experiment will be able to operate but it does appear that the Russian team is trying to get the activity rescheduled. Hopefully they will be able to just shift one day (to February 22) as well.
**UPDATE (Feb 21)**
Looks like the setup and activation of the SSTV project has been scheduled on a Russian Cosmonaut for Sunday, February 22 from 10:00-10:30 UTC.
**UPDATE (Feb 24)**
SSTV transmissions should continue until 21:30 UTC today (Feb 24). The Kenwood D710 will be powered down at that time in preparation for the second of three spacewalks. The second space walk is scheduled for Wednesday, February 25 and the third is planned for March 1.