A radio documentary can take several hours of work for every minute that the listener hears. We do about half of our shows this way. Our Full Edit shows (as you call them) take about an hour per minute of finished program. Our documentary pieces, including travel for location recording, and associated research, have taken more than 5 hours for every minute of finished product.

For our documentary pieces we:
1) Research the topic, and write a internal rough-draft journalism piece about it.
2) Schedule interviews which might include phone interview, in-person meetings, or attending various events.
3) Record the interviews, which might include travel, or hiring a remote engineer.
4) Transcribe the interviews.
5) Fact-check the interviews.
6) Listen to and log any location sound-effect recordings.
7) Write a show script, based on the draft story, and incorporating clips from the interviews.
Edit and clean-up the clips from the interviews.
9) Record the narration.
10) Assemble and mix the narration, music, sound effects, and interview clips together.
11) Encode and upload.
12) Write the blog entry.