I just checked it after getting home and I just get audio and a black screen. I've tried it three times now and I get the same black screen. Admittedly, I hadn't checked it ever since Time Warner upgraded my internet speeds to 100 down and 10 up (about two months ago) and everything worked fine then. At that time I was getting the video to read the 15600Kbps.
When you had the scrambling problem did it affect the UI overlays? I've seen a scrambling problem that affects only video; the UIs and UI overlays over the scrambled video are perfect. I've only seen that once or twice on Netflix; it happens every time on VUDU and Hulu Plus, sometimes with Amazon video. This problem scrambles everything; the Netflix UI, the Amazon UI when I switched to Amazon and even the fullscreen VIA apps menu when I pulled that up.
I really suspect that it's a test of new encodings for HEVC-capable devices. It displayed 6960 Kbps for 1080p, when the 1080p encodes should be 4300- and 5800 Kbps. (Higher bit rates for existing resolutions doesn't seem like a direction they'd want to go in; it might provide better quality, but fewer people would have service at high enough speed to see it and it'd cost them more for storage). It also displayed a 3600-something bit rate as it marched up through encodes when I watched it recently (it won't start at less than 6960 Kbps 1080p for me at the moment so I can't check those lower bit rates). The only bit rate starting with a "3" should be the 3000 Kbps 720p one.
Whatever they're doing, when it that clip hits 2160p on my P60 it completely fracks up VIA and only exiting it will get rid of the graphics scrambling.