The 3rd seminar is the Adventures in design series was held recently.I had 2 great presenters (Yevs and Rebecca), both active architects, instructors and VCDX certified.
We discussed everything DR, BC and Back Up, both from a business and technical architecture point of view.
Although not aimed directly at any particular certification, it could be useful for the VCAP6-DCD and VCDX certifications.
The recording is available here