Sony VAIO VGCRB40 Owner's Manual page 125

Resolving a recording conflict
A conflict message window appears if you attempt to schedule a single or series recording that is in conflict with a
previously scheduled recording session.
TV program recording conflict
To resolve the scheduling conflict:

Replace the previously scheduled recording with the current recording request.

Select episodes that are in different date or time slots to avoid the conflict.

Decide which program is to be recorded for each schedule conflict.

Record only the episodes (in a series recording) that are not in conflict with the other recording.
You can see which schedule recording is in conflict when the icon appears next to the TV program title.
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