Try https://www.edx.org/ - you will find a wide variety of courses in there. Courses are free unless you wanted official certificate (so the content is free)

Another one is https://www.coursera.org/ - similar (last time I looked there have been free courses in there)

To clarify, I don't want to do courses, just listen to university computer science lectures.

I enjoyed Richard Buckland's videos as much for his sense of humor as for the actual content. Some of them are apparently now part of a mooc, but the ones I watched a few years ago are just recordings of his lectures at UNSW.

https://www.youtube.com/user/BucklandRichard

Perhaps something like MIT OpenCourseWare? https://ocw.mit.edu/index.htm

edx delivers youtube lectures and many of them are actual lectures given to MIT students :-)

Structure and Interpretation of Computer Programs by MIT is excellent - https://ocw.mit.edu/courses/electrical-engineering-and-compu...

List of awesome university courses for learning Computer Science!

https://github.com/prakhar1989/awesome-courses

Just find.You will find a wide variety of courses in there. Courses are free unless you wanted official certificate.

CS50x was great, stick with it.