Many Theosophical Society talks have been uploaded to archive.org
Arc Hive is a better name – alive with buzzing bees storing their honey for the benefit of future generations. Hundreds of hours of good wisdom. Many of these talks are worth listening to – it is, after all, the perennial philosophy, so talks given years ago are still relevant. The files listed above are a selection.
“Archive” implies dusty old documents that are stored away for a historian to sift.
If you want more they have to be downloaded one at a time from here.
archive.org provides descriptions of each item, and allows searching.