A:Answer Hi JoeMak. That will depend on what type of remote Comcast Xfinity provided you with. You will need to contact them to inquire if the remote you have is a universal remote that can be used to control Soundbars or other devices and to inquire what functions on a Soundbar it can control. The LG SK1 2.0 Channel Compact Sound Bar with Bluetooth® Connectivity can be controlled with some TV remotes from LG (does not work with the LG Magic Remote), Panasonic, Philips, Samsung, Sharp, Sony, Toshiba and Vizio and the controllable functions are volume up/down and mute...^IFV