You might try here:
I believe PBS became NEA (National Educational Network) for a while and
those PBS stations may have some archives with these things too.
*Trescott Research - Paul T. Jackson *
2503 Natalie Lane, Steilacoom, WA 98388
On 7/12/2020 7:36 AM, Dave Radlauer wrote:
> L. Ron Hubbard on
> the subject of Dianetics in December 1950.