How do you reset cable box comcast

The simplest way to receive Comcast's digital cable without a cable box is to use a Comcast digital CableCARD. CableCARDs can be used with a television that can receive digital signals. CableCARDs are about the size of a credit card. If you choose to purchase Comcast limited cable without a CableCARD, the results will vary depending on the type ... ................
................