A word of caution: file quality varies wildly. Some episodes are pristine 1080p upscales; others are grainy 240p recordings from 2009. Always scan downloaded files for safety, though Archive.org is generally considered a trusted non-profit domain.
The preservation of digital media is a race against time, and few case studies highlight this better than the Ni Hao, Kai-Lan collection on the Internet Archive (Archive.org) ni hao kailan archiveorg