Talk radio is one of the most influential and least-scrutinised corners of the British media landscape. Millions of people tune in to LBC, Talk Radio, Times Radio, and GB News every day — yet there's been almost no systematic way to track what these stations are actually discussing, how their agendas differ, and how coverage changes over time.

That's why we built Sesen.

What we do

Every hour, our system monitors all four major UK talk radio stations and runs the audio from each through a transcription and classification pipeline. Each segment of speech is tagged with a topic, a sub-topic, and a category — editorial, advertisement, news bulletin, and so on.

The result is a continuously updated dataset of UK radio discourse. From that, we can answer questions that previously would have required hours of manual listening.

What's coming

Over the coming weeks, we'll be publishing regular analysis pieces here — looking at story spikes, cross-station comparison, and the moments when the whole of talk radio seems to pivot simultaneously to the same topic.

Sesen monitors LBC, Talk Radio, Times Radio, and GB News. Data is updated daily.