If you want to include a video segment from one of the lectures in your post, you can use the lecture tag. Here is an example of including Lecture 7 starting at 5 minutes and 45 seconds (spaces added to the tag to prevent rendering)
[ lecture7 ]345[ /lecture7 ]
where the 345 is the starting point in seconds (5 minutes and 45 seconds). Here is the result of writing this tag correctly, without the spaces:
When you click play, the video will start at the specified time. Also, here are the
pdf files of all the lecture slides.