What Is a Cable DVR?

A DVR is a component of a set-top cable box that can record and store television programs. Users can record any program, at any time, on any channel, and programs recorded on a DVR are accessible at any time on your television using the cable box's existing software interface. Further, users can pause or rewind any live television program with a cable DVR.

Standard cable DVRs, known as single-tuner DVRs, allow users to record one program at a time. Multi-tuner DVRs, with two or more digital tuners, allow users to record and view more than one program at a time. For example, with a dual-tuner DVR, you can record two programs simultaneously or record a program on one channel and watch another program on a different channel simultaneously. Multi-tuner DVRs offer added convenience, utility and flexibility for users who experience scheduling conflicts as multiple programs overlap during primetime viewing hours.

Unlike its mechanical predecessor, the VHS tape, which required large tapes and a bulky recording box, a cable DVR uses a digital hard drive. Depending on the specific cable box model, this internal storage device allows DVRs to store up to 300 hours of standard-definition programming and up to 60 hours of high-definition programming. With most programs lasting between 30 and 60 minutes, a cable DVR allows you to store dozens of recorded programs at a time.

Cable DVR service is not included in the cost of your digital cable channel package or monthly equipment charges. Cable providers charge an additional monthly fee for enabling DVR service on your cable box. The fee charged for DVR service varies by cable provider and location. Equipment fees can add up quickly and make up a significant portion of your monthly cable bill, so consider limiting the number of boxes you equip with DVR service to save money.