Just discovered these
theguardian.com/lifeandstyl...
2xthreshold runs, 1x interval, and 1xhill repeat
They also have a Beginners series which sounds almost identical to the NHS podcasts - except different narrator and music. I might do their final 30 minute runs as "easy " runs for a change.
If you search their database they also have a lot of running articles in their "lifestyle" section