TRILT (Television and Radio Index for Learning and Teaching) contains listings for more than 560 TV and radio channels from 1923 onwards. To search TRILT click on Sign In and enter City, University of London.
A TRILT record will tell you if a programme is available in BoB or as an off-air recording.
Tip: When searching TRILT, select 'Radio Only' under Programme Details to limit to radio broadcasts.