Choose whether the original recording must remain intact
Plex offers commercial detection with skip markers and a separate removal mode that alters the video file. Its guidance recommends the non-destructive detection route because recognition can be imperfect. If part of a programme is misidentified, preserving the original gives the viewer an opportunity to watch that material rather than losing it through an irreversible cut.
Read the selected DVR option
Plex’s DVR settings distinguish disabled detection, detecting and deleting commercials, and detecting commercials while marking them for skipping. A similar-looking menu label can therefore represent a very different file operation. The guide describes both global recording settings and per-recording choices. Review which scope you are changing instead of assuming the preference only affects the next programme you happen to open.
Use an appropriate test recording
For a lawful broadcast you record through your own supported tuner, retain a non-destructively processed example and inspect transitions around several marked breaks. Check that important programme material remains available, including the ending. If you choose a destructive workflow, understand that Plex says incorrectly removed sections cannot be restored from that altered file. Keep an independent original where preservation matters. A skip button appearing is evidence of a detected marker, not a guarantee that every boundary is correct. Record the chosen mode and scope when diagnosing an unexpectedly shortened recording rather than immediately blaming the broadcaster’s schedule.
Questions, answered
Can destructive commercial removal be undone if detection was wrong?
Plex says sections removed by that destructive process cannot be restored from the recording.