The Cooper Union in NYC used to do something similar for over a century until they were forced to stop in 2014 due to a combination of many financial factors, including the financial crisis of 2008.
I spend a lot of time on YouTube watching what I call “educational channels” on topics ranging from science to geopolitics to philosophy. Here's a list of a bunch of them.
You can read the entire story of it here: https://en.wikipedia.org//wiki/Cooper_Union_financial_crisis...