"An update on our work on low latency streaming"
by Chris Poole at BBC Research & Development.
I didn't know BBC contribute to both the DVB DASH standard, and to the dash.js reference implementation. With commercial CDNs rolling out support, this allows much smaller segments of audio/video to be sent to clients through CDNs in near-realtime using W3C Media Source Extensions.
https://www.bbc.co.uk/rd/blog/2022-11-low-latency-live-streaming
More technical detail:
https://www.bbc.co.uk/rd/blog/2018-09-latency-video-streaming