Turn on the TV and the Comcast/Xfinity cable box
Insert fresh batteries into the remote
Point the remote at the cable box or TV
Press and hold the Setup button until the LED changes color
Enter the TV manufacturer code if pairing to the TV
Press the Power button to test the TV
Press the Volume buttons to test audio control
If the code does not work, repeat with a different code
Use the Xfinity remote app or on-screen instructions if available
For voice remotes, press and hold the Microphone/Voice button and follow the pairing prompts
If needed, restart the cable box and try pairing again