HULU looks the same to me as it ever has. HULU has always set their top resolution at 720p. The best you'll get is 720p quality.
Try updating your NVIDIA driver. Use Studio drivers, not Game Ready.
StreamFab doesn't re-encode at this point. SF only re-encoded some streamers during the last DRM change crisis. Your guess is wrong.
Cats4U
I just double-checked based on your response. I am almost positive that StreamFab is re-encoding. The Encoding usage on my Quadro card is 0 when the download is going on. Then, as soon as the "Processing" phase starts, the Encoding goes to 40%. I cancelled the processing before it was done and the Encoding went back to 0% right away. Nothing else was running on the computer at the time.
I have been downloading the same shows off of HULU for many months now, and I am quite familiar with the quality it used to be.
I just took a look at the file size, and it's now less than half of what it was. Jan 6, an episode of "The Chase" was 1,249,133KB and the episodes on 1/13 and 1/20 were both almost exactly 558,521KB - less than half the size. All were 720p.
Clearly something's up.