I was a child during the heyday of VCR, but I don't think any of my family was aware of timed recording. The whole concept just didn't exist in our lives until Tivo. Non-obvious features plus buying things second hand just meant you never learned everything your stuff did back before you could find manuals online.
My family could afford most things new, we had the manuals. I think my parents read them too, as they knew how to use the timed recording feature. My grandma knew how to use hers!
Many people would keep the manuals near the TV, so they could remind themselves how to use the rarely used features.
The Panasonic VCR we had included a barcode reader in the remote. The printed TV guide has barcodes for each program. This interface was very easy to use -- scan, and press "transmit".
"Non-obvious features plus buying things second hand just meant you never learned everything your stuff did back before you could find manuals online."
That's the outrageous point. You shouldn't need manuals for operation of ordinary domestic appliances! If you do then you automatically know its design is substandard!
(The only reason you should need a manual is for some info or maintenance function that's not normally associated with
its user-operated functions.)