Wasn't sure where to post this but here it goes. I have a Roku that I use most of my streaming for. With data caps now on Comcast ,I'm.afraid to stream too much because my cap is 300gb. I can use another service with no cap and would be happier but I would have to change my package. Any ideas? How much data is actually used for Netflix as a casual user of tv shows and a movie or two a day, plus Pandora and YouTube ands Smithsonian channel, all in HD? Should I be concerned? Thanks. Andy