Several Triratna centres produce their own videos on Buddhism and meditation which are available on YouTube.
London Buddhist Centre: https://www.youtube.com/c/londonbuddhistcentre
Sheffield Buddhist Centre: https://www.youtube.com/c/SheffieldBuddhistCentreTriratna/videos
The Buddhist Centre Online: https://www.youtube.com/user/thebuddhistcentre
Talks and Guided Meditations
Free Buddhist Audio is Triratna's site for the best recorded talks from around the movement.
Recent Talks: https://www.freebuddhistaudio.com/browse?cat=latest&t=audio
Windhorse Books is Triratna's publication wing. It produces books by Sangharakshita and other Order members aimed at all levels of experience.
Transcripts of talks