Comcst remote control code not working

Question

i have tried everything to get my comcast remote programmed to the tv but it won't work .I've searched the codes for it but none will work for this tv. Can you tell me what code will work so I can stop using 2 different remotes.i have a 32" emerson hdtv and i have tried all of the codes but none of them work for my comcast remote, how can i git it to work with this remote?