CITI has storted offering some audio-visual modules as part of their online courses. Initially some of these modules will online be available in the Human Subjects Research Social-Behavioral-Educational Basic course (and unfortunately not yet for each module). However, for those modules offered in that format, you will be given the option to take the audio-visual course (slideshow presentation) rather than the regular course option.
You can find more information in CITI's FAQ.