Default TV overscan border

[Guest]

I use powerpoint in church presentations. This same powerpoint is then
incorporated into a video production. Unfortunately, images are overscanned
on the video. Can a default TV overscan border (TV safe area) be set in
powerpoint?

 

[Guest]

There are programs to "shrink" the video eg TMPVenc

however the simple solution is to show guides to deliniate the safe area.

View > grid and guides

ctrl/drag to create extra guides and them drag them to the appropriate place
on the slides (set as default)