After seeing the bad redactions in PR071 that @john.phil posted about, I checked the other videos. THis is something you can do in the Sitrec video viewer by setting video/Video Adjustments/Levels Midpoint to 5.
https://www.metabunk.org/sitrec/?sitch=video

That's PR-074, where they have redacted whenever the drone with the camera comes into view.

In others like PR-076 there's ver minor leackage of the OSD

PR-079, NEARLY readable numbers

And that's basically it.