I say definitely try Tunebite, why should you even bother with such complicated ways to capture and save Netflix live video streams as the ones mentioned on that thread from that rorta forum when you can just get a Netflix Video Downloader?
Tunebite Netflix Video Downloader can save Netflix live video streams easily with no problems whatsoever, thanks to its screenrecorder function. The Netflix Video Downloader is also able to convert Netflix movies to avi, mp4, 3gp and other file formats you might need for your devices.
Of course, besides capturing Netflix live video streams, you can also use Tunebite to record and save video streams from a lot of other streaming video portals like Hulu, YouTube, Facebook, Megavideo and many others.
Actually, to be honest Tunebite can pretty much capture everything you see and hear on the web. It's a complex app with a lot of very useful features and I am sure it's just the Netflix Video Downloader you were looking for.