# Video & Course Resources

## Public Video Platforms
- YouTube (public videos, Creative Commons content)
- Bilibili (public videos)
- Vimeo (public videos)
- TED Talks (ted.com)
- Internet Archive (archive.org — public domain video, news, movies)

## Open Courses & Education
- MIT OpenCourseWare (ocw.mit.edu)
- Coursera (free/public courses)
- edX (free/public courses)
- Khan Academy
- 中国大学MOOC (icourse163.org)

## Public Broadcast Archives
- Internet Archive TV News
- C-SPAN
- PBS

## Subtitles
- opensubtitles.org
- SubHD (Chinese subtitles)
- 字幕库 (zimuku.cn)

## Tools
- yt-dlp (primary — 1800+ supported sites)
- ffmpeg (format conversion, stream assembly)
