The YouTube channel AviationKnowledge has posted a series of MD-80 CBT videos. CBTs are a great way to learn about your MD-80 aircraft and how to operate it.
Normally, CBT programs are interactive and you can learn about the subject at your own pace. These videos take you through each section of the CBT and let you learn about the MD-80 while leaning back.
Subjects covered range from introductory lessons to more indepth system reviews and even how to handle malfunction scenarios.