Interview footage from The Mind of the Universe, made by Dutch public broadcaster VPRO:
- Over 40 hours of video interviews with world-renowned scientists.
- Download the interviews + extra footage, including subtitles.
- Remix, re-use en edit under CC-BY-SA license.
I'm not sure these qualify as "premium libre vdeo" as they are raw, but it does look like professional recording, and are watchable on their own. The TV show they are from is not itself libre.
Are there other good instances of premium footage?