haha forgot that it's all client side and I dont technically need to reveal the code, but I'll explain it
main page:
view-source:https://www.igorhub.com/
JS file for TV static BG
https://www.igorhub.com/static.js
in the same directory as the main page, have a folder called videos, filled with videos named 1.mp4, 2.mp4, 3.mp4...
I used a tool called Bulk Rename Utility to do that
there's a variable called numVideos which is whatever the highest number video is so the random number generator doesnt go to high