Need remote code for older Silver remote to control PR150BNM Cable Box

I currently own (yes, I know it's old) xfinity cable box PR150BNM. I also own (yes I know, it's old too, but I like it) the silver remote (with the red ok/select button). everything functions well,

however the remote is showing its' age button-wise, so I purchased a new remote-same model. It accepted the remote code for my samsung tv, but I can't get it to

control the cable box; is there a remote code for this box?