To update, I've tried everything, with very little luck. Most of them throw a fit about "not allowed in your area," presumably due to blackouts/concerns that I'm not in the country.
Sneakily, they manage to play me several ads before telling me this.
I enjoyed a few glorious minutes, before it kept buffering, and I gave up. It doesn't help that apparently Allstate is sponsoring free inflight wifi for "cat pictures."
Ah well. Movie time.