Where can I find video materials on C?

Question

YouTube

Good time.
I am looking for interesting materials on the C language. But damn YouTube gives out mostly Indians with a level of "below average" and under vpn too.
Perhaps someone is watching interesting channels on programming and C in particular.
From the comments below it is clear that the question is rather vague.
Looking for:
Not entry level ie. description of interesting tricks and idioms, patterns.
Not at the level of "well, there is such an idiom, I saw it when I was parsing UNIX code, but how the hell does it work, excuse me, but use it."
Examples of working with tools: debuggers, code analyzers, profilers.
Conferences, gatherings, etc.
Writing Drivers
Thank you.

Answer 1

Search MOOC platforms. coursera, lektorium, openedu, etc. There are university courses there. Both in Russian and in English.

Answer 2

If you take not C, but C ++, that is, an excellent specialization from Yandex on the courser, at the moment there are 4 out of 6 courses in it.
In 4, idioms of the language are understood.
Also, if you are interested in patterns, then look at design patterns from oreily, even if the examples are in Java, but the meaning does not change.
So are Kernigan's books.