This is incredible, and doesn’t cost $160,000. Free lectures from Harvard, Berkeley, MIT, Stanford, Princeton, and Yale, covering a ton of subjects, for absolutely free.
I hadn’t come across this before, but this is a wonderful resource, and a very nicely designed site too. The link to ‘dim the lights’ while watching a lecture is a lovely touch. If I had more time, I’d take one of these courses (something other than Biology, obviously) just for the heck of learning new things.