You can search for a key term or choose subject index from the menu at the top left of the page. The "Narrow Results" options on the right side of your results page let you choose full videos or segments and limit by copyright year. Sample titles include:
Many titles provide transcripts (look at the tabs in the box to the right) which can be helpful when citing. Some also allow searching within a transcript to more easily find relevant information, however you need to scroll through the transcript to look for highlighted terms. It does not automatically jump to them.
Note: You will need to use your Single Sign-On user name and password to access some library resources.