Dvds were a whole thing before streaming, and vhs before that. Parents would have 20 of these on rotation to keep the kids quiet.

I think YouTube might have a documentary on the rise of vhs sequals to big movies. They played a big part.

If you're thrifting for cheap animation blurays and dvds, go look at the vhs. You'll often find 20+ Disney tapes from mom's that purged the whole lot