Once you hit your tethering allotment, it does in fact slow down. Last night I hit the 14GB limit while watching the new OJ show in FX live (using phone hotspot to aTV) and as soon as I hit the limit, the stream pretty much stopped. It would buffer, start again and then stop after about a minute or so...so it def throttles after the cap, but isn't shut off completely. I was able to call cust care, up my plan to 22GB of hotspot and also have them backdate the change so there would be no prorated charges. I have 7 days left in my cycle and currently use my phones hotspot in conjunction with Binge On and an Apple TV. 22GB should def last a month. YouTube, FX and one or two other streaming services that aren't a part of the Binge On program are what's killing me. I'm trying to eliminate the need for a separate home wifi connection, but not sure this is a perfect solution just yet.