I do the audio stuff, and throw them on my phone/ipod..(yes, I still have one of those...)
I suspect I miss some content by not getting the video versions, but, like you...dont sit still long enough to watch.
I really have enjoyed some of the courses by Professor Fears...Wisdom of History, History of Freedom, etc. he passed a few years ago.
good stuff...glad that other FReepers have discovered Great Courses, also.
I have several sets by Professor Fears, too. Loved him, and I was sorry to learn he had died. “Achilles traded a long life for a glorious memory ... and here’s a fat old professor in Olkahoma, three thousand years later, telling you about the great deeds of Achilles. He got what he wanted!”
Professor Elizabeth Vandiver on classical literature and mythology is another of my favorites.