I have Time Warner Cable TV and so-called high speed internet, which is now owned by Comcast. Even with my TWC 20 Mbits internet I have trouble streaming HD video. The reason is that TWC has such a crappy infrastructure and outdated equipment. Just normal web surfing can slow down to a snail's pace. My AppleTV sits unused most of the time because Netflix and HuluPlus would be a waste of money with my crappy internet connection. The only time I use my AppleTV is to push my iPad or iPhone or Mac content onto my HDTV. I cannot imagine Comcast being an improvement.