PR150BNM remote control

I've got an Xfinity PR150BNM settop box and I want to hide it in my ceiling.  This means I won't have line-of-sight for the remote.  I could purchase an IR blaster to forward my remote signal to the settop box, but this would introduce more wires.  My Smart TV allows for HDMI-CEC and has an ethernet port.  Is there a way to control this settop box using either of those ports?

If I can't use these ports, is there another settop box that I can use to get this functionality?  I'm not looking to upgrade or spend more money to do this.