The Fluid Project's YouTube Channel can be used to post new videos related to the project, or create playlists of existing videos from other accounts that are from members of the community.
Alan Harnum (firstname.lastname@example.org) at the IDRC is the main administrator of the Google account. Contact him for help / questions.
A fluid-work mailing list thread from March 2017 has some more extended details about the YouTube account.
All videos uploaded to the channel should have captions transcribed from the audio track (YouTube's automatic captioning quality is not good enough). See YouTube's help section on captioning.
It is possible to add people to the YouTube channel as administrators so they can upload and caption videos directly. Let Alan know if you would like this access.