I do not have TV at home. Comcast and DirectTV are not part of the tools I am using. If I am not consuming content on my computer, I do it via the Xbox. Movies from Netflix can be downloaded directly on the Xbox, ESPN sports events are available real time. Now also is music. Last.fm is now available on Xbox.
With the Kinect your true virtual universe is also available. They also introduced Video Kinect for video chat, however I think we are one step away when skype will be available via Xbox.
Also, I can bet that soon Xbox will become much more than only our entertainment media. We will be able to buy products and do shopping directly there as shopping programs are doing. Now TV sets allow you to connect directly to the internet and make your TV be your new screen.
TV programs will go away soon the same way magazines do. The revolution is starting for TV. They will be free and will be consumed via the Internet network directly. Land lines are also disappearing slowly and people have more and more mobile phones replacing the traditional phone at home. Internet is reorganizing our world and certainly areas that were institutions in our life for the past 50 years like TV, phone and magazines.