Thanks for taking a look at the logs.
In my system Hulu works fine in IE 11, Chrome, and on Hulu Desktop. Also, after installing Flash 11 it worked in the MC browser. Still no luck launching files out of the Theater View menu, same problem. I've tested previous builds and MC 18, same problem.
It must be a strange local problem. I'm using Win 8.1, and I think Hulu stopped working around the time I upgraded to the preview (currently have updated Win 8.1 RTM).
Are there any DirectShow settings within Windows to check out? Maybe some dependency is missing?
I'll continue to troubleshoot and try on another computer when I get a chance. Any other users having this trouble on Windows 8.1?