Around since 1984, TED (Technology, Entertainment, Design) talks have more impact now with the Internet. Click here to get to the website with 25 of the more popular TED talks. These talks are audio-visual.
How about taking in one of the Moraine Valley Community College Library podcasts. You have a choice of audio-visual, audio, or audio with transcripts (written texts). Click here to get to the 2020 and all previous podcasts.