The minimal requirement for all CPS-IoTBench videos are slides with voice over, encoded in one of the common video formats (e.g., H.264/MP3), however, please don’t let this restrict your creativity.
Probably the easiest way to produce this minimal version with power point is to go to the Slide Show tab, click Record Slide Show and Start Recording from Beginning with both narrations and timing active. Saving the file as MPEG-4 Video gives you the desired result. You can re-record parts you don’t like, by selecting Start Recording from Current Slide.