That's how it used to be.
I've been thinking recently about de-branding the microcast and removing episode numbers when it returns, along with the planned change in frequency.
The microcast was named Sonant Thoughts because of the tie-in, and play on words, with the blog title. De-branding the microcast paves the way to a de-brand of the blog and vice versa.
Sounds like it might be a good idea. After all, a personal blog really only has one focus.