I was hoping for an actual discussion rather than a link to a 20 min video like that.

That 20 min video was all "capitalism is bad" and only for a few seconds near the end where he proposes "Communist Realism" without even attempting to explain what it is or compare any sort of pros and cons.

So to summarize the video for anyone else who doesn't want to waste their time (in the context of the questions I proposed):

What economic system would you recommend beyond capitalism?

Video: "Communist Realism, buy my book"

Are there any large countries that have successfully implemented this?

Video: "No, they weren't given a chance because capitalist countries overthrew them in one way or another."

Perhaps a better discussion would be over what the best mixture is rather than the simple: "Capitalism/Socialism is bad" that people seem to argue so much over.

The video didn't really address this other than:
Video: "Capitalism bad, people are stuck thinking there's nothing else"…