Comcast offers self installation for many of its Xfinity customers. Here's how you can quickly set up your X1 box and activate your cable service.

You can watch Xfinity Stream and get access to dozens of free channels, all without renting anything ...

Be aware that many Xfinity Stream features will not work with third-party devices. You will not be able to navigate using the Xfinity Voice Remote, order Pay Per View events, or access Xfinity apps.

If your Xfinity cable box keeps freezing when you scroll through the guide or change channels, it can be caused by software glitches, outdated firmware, or signal interference.