I don't know how much I can contribute because all I've really got are my VHS tapes. Most of them aren't even that old, they're from the Masterpiece Collection series in the '90s. I understand that series was remastered, but I have no idea to what extent.

That said, according to this wikipedia page "Saludos Amigos" "Make Mine Music" and "Melody Time" are censored on the DVD editions (unless a rerelease after the first time undid this; if so, it is not mentioned in the article.) It might be worth looking to see if that was previously available unaltered.