Turn on the TV or device you want to control
Find the setup code for your TV, soundbar, or device in the Comcast/Xfinity remote code list
Press and hold the Setup button until the LED changes from red to green or blinks twice
Enter the 5-digit code using the remote number pad
Wait for the LED to blink twice to confirm the code
Test the Power and Volume buttons
If the code does not work, repeat with another code for your device brand
If your remote has an Xfinity button, press and hold it and follow the on-screen setup prompts
For voice remotes, press and hold the Setup button and follow the pairing instructions if needed
If using auto-search, press Setup, enter the search mode code if required, and cycle through codes until the device turns off
Press OK or Setup to save the code when the device responds correctly