If you're a Comcast Xfinity customer, you can now watch live TV on your iPhone, iPad or iPod Touch. All you need is the Xfinity TV app and a Wi-Fi connection.
Once the download is complete, open the app and sign in with your Comcast Xfinity username and password. You'll then have access to all of the channels that are included in your Xfinity TV package. If you want to watch live TV on your mobile device while you're away from home, you can also connect to an available Xfinity WiFi hotspot.