Hey
Thanks for reaching out! It is possible that your recordings were set to "Save Until: Space is needed (shown below)"
This option defines the automatic delete feature on the Digital Box. By default, the oldest recordings will be deleted to make room for new recordings. There is no way to restore these programs, if possible the content may be available "On Demand."
To avoid this in the future, I'd recommend the alternate option by choosing the "I delete" setting which will require you to delete recordings of your choice when the recording space on the Digital Box is full.
Cheers,
Tony | Community Mod.