To program your Comcast cable box, go to Customer.Xfinity.com and hover your cursor over the Xfinity TV button. The Xfinity TV button is located in the upper center portion of the Web page. Select the Set-Up Box User Man... More »

Comcast Xfinity customers have several options for blocking calls from unwanted numbers to a landline or cell phone. Comcast provides both a robocall blocker and a call screening service that can be used to block specifi... More »

Activate your Comcast device online at Comcast.com/activate. As of 2015, you may also activate your device over the phone by calling the toll-free number 855-OK-BEGIN. More »

www.reference.com Technology Television & Video

To program your Comcast remote, acquire the manufacturer’s programming code that corresponds to your cable box or television set. Programming codes are located in the Comcast Universal Remote Control user guide. More »

Replace a Comcast HD cable box by purchasing an alternative cable processing unit through a third-party retailer, which allows you to decode the incoming cable signal and transmit the content by connecting it to an HD te... More »

There are several ways to reset a Comcast cable box. Sometimes, issues with a Comcast cable box, such as not processing a proper cable signal, can be resolved by turning the box off and on again. Also, check that the cab... More »

To connect a DVD player to a Comcast cable box, start by tuning both the cable box and the TV to channel 2, 3 or 4, then connect the cable box to the wall. Next, connect the audio and visual cables between the DVD player... More »