I've searched and searched and found a couple instructions to set advanced recordings, or setup guide data from odd sources but nothing quite fits my issue.
I have three custom sources that come from Coax to IP converters into HDHome runs as cable channels.
Obviously they have no guide data and that's usually not a big deal. However I want to setup a custom record of a Zoom meeting from x time to x time on the "Media Channel" and I can't get advanced to work because matching on channel 3.1, 3.2, or 3.3 (see screenshots) doesn't seem to work unless there is an underlying guide on those channels. It just doesn't record.
How can I record my "Media" channel 3.1 from say 8pm to 11pm at night on a set day?