Here are a couple of ideas that might work:
- You could use a glossary and the Random Glossary Entry Block to do this. Make an entry for each video. Put a number o letter in the Concept area so that they will save in the order that you want. Put the embeding code in the description part of the glossary entry. If you have a version of Moodle which will let you, you can place this block at the top of the course. Set the configuration for the block to show entries in order and set the number of days between changes in the block.
- Another way is to use a label for each video. Use the restrict access setting in the label to chose the date/time for students to have access and the time/date for it to close so students will not have access. These will all show when you are logged in when editing is on, which could be a little bulky to work with, but to the students, only the one that is supposed to be visible will show to the students.
There maybe others who might have programing ideas to do the same thing in a better way, but this is what I know how to do.