Yes. Youtube. You can see some really old ones that are not exactly politically correct like Bobby Bumps from 1917 with a “mammy” like character.
https://www.youtube.com/watch?v=iQCv-O3-QDY
4:33
I stumbled across “Coal Black and de Sebben Dwarves” some years ago on Youtube. Made in the 40s, and about as politically incorrect as you’d guess. No idea if it’s still there.