High Quality Content by WIKIPEDIA articles! The Beiderbecke Trilogy refers to three television serials written by Alan Plater and made by Yorkshire Television for the ITV network in the United Kingdom between 1984 and 1988. Each serial centres around schoolteachers Trevor Chaplin (James Bolam) and Jill Swinburne (Barbara Flynn) who work at a rundown comprehensive school in Leeds. Woodwork teacher Trevor enjoys football and jazz music while English teacher Jill is a political activist concerned with saving the environment.