Hey sansradio,
Here are a couple of podcasts you may be interested in:
EP 36, Scott Saul on "Becoming Richard Pryor" [[Jan 31, 2015)

A conversation with Scott Saul, author of the new biography, "Becoming Richard Pryor."
http://podbay.fm/show/379453196/e/1424667600?autostart=1

Jennifer Lee Pryor [[Feb 23, 2015)

Richard Pryor's widow Jennifer Lee Pryor stops by Alison Rosen Is Your New Best Friend to talk about how she and Richard met, what she loved about him, what she misses about him, codependence, her relationship with his kids, drugs and threesomes, marrying, divorcing and marrying him again, her involvement in the upcoming biopic, executive producing and appearing in Richard Pryor: Omit the Logic, domestic violence, Richard's suicide attempt, other women, the N-word, Bill Cosby, Mike Epps and so much more. We also did a round of Just Me Or Everyone.

http://podbay.fm/show/379453196/e/1424667600?autostart=1