I am trying to reprogram the available cable channels on a 1985 vintage TV with an IR remote. The only controls are: Channel - up down Volume - up down Cable / Air slide switch Search - auto / manual slide switch Fine Tuning Up/down Auto Color on/off The JCP model is 685-2113 Currently the TV will tune to cable channels 2-64 then skips to 95-99. Is there anyway to add channels 65-94? Thanks