It looks like a RCA VCR oem remote
That's interesting to know, and would explain why I can't find a picture of the thing in any of the two dozen manuals I've downloaded.
Interestingly, (what I think must be) the default TV code controls power, channel, and volume on an old Zenith TV I have.
When programming try both VCR 1 and VCR2 /LD devices.
The codes you mentioned are what I had tried for VCR 1. I hadn't thought to also try VCR 2 but... no luck.
It would be interesting to see whether I could get it to control some other VCR, but I don't have any handy.
Thanks again.
