Time Warner Cable Joins The Austin Competition With 300 Mbps → -

not sure if its in there and if it is, its probably buried deep as tiny fine print hidden away in obscurity but like most cable companies providing internet, im sure there are "caps" on how much data you can pass before you are either charged more or cut off.
if thats the case, lots of luck trying to stream a 1920x1080p HD game stream using Twitch.