Don Romano (alt)
TV shows about STEM subjects are typically dumbed down so everyone can understand it.
The same is generally true of YouTube, but you can at least find the high-brow content if you look for it.
What's still difficult to find on YouTube is content for people who are smart, but aren't taking STEM courses in college.
Take EEVblog, which is run by an electronics enginener: He mostly doesn't explain anything. He just tears stuff down and points at random parts. Why? Audience retention.
Don Romano (alt)
A better channel if you truly want to understand a STEM subject is BigClive, but he's an electrician and stays away from the more advanced electronics.
Great Scott goes into more advanced stuff and explains it more than EEVblog does, but is still a tad superficial.
Computerphile and Numberphile are very good. You actually understand the concepts after you've watched the video. It demands more out of you as a viewer, but that's the point, isn't it?
Jonkman Microblog is a social network, courtesy of SOBAC Microcomputer Services. It runs on GNU social, version 1.2.0-beta5, available under the GNU Affero General Public License.
All Jonkman Microblog content and data are available under the Creative Commons Attribution 3.0 license.