Note: the complete BBC Archive of tv and radio broadcasts since 1922 is searchable here - https://genome.ch.bbc.co.uk/
Please get in touch with your liaison (subject) librarian if you need a programme or broadcast from the BBC archive that isn't available on Box of Broadcasts (see above)
DVDs and Blu-Rays are shelved on floor 5, and are loanable on the same basis as books. You can find DVDs in library search in various ways:
Here is a list of DVDs by language:
Chinese DVDs
French DVDs
German DVDs
Italian DVDs
Japanese DVDs
Portuguese DVDs
Russian DVDs
Spanish DVDs
There is a great deal of free audio-visual content available on the Web. A small selection of some useful sources are listed on the following guides:
Relevant sections of the subject guides will also include audio-visual resources relevant to that specific field