This page has links to find the scripture readings and videos in the Advent packets
Scripture passages can be found at Bible Gateway. Just enter the passage in the search engine - I'd suggest either the NRSV or the NIrV version:
Here's where to find the Bible Project videos. Click on the link, click on videos, then for the videos reference on the Advent calendar, go to Old Testament. The whole site is worth exploring - they're great videos.