hey u guys.... i do know that in order to set up my dvd on a tv without the inputs (red white yellow stuff) i woud need a rf modulator... but my question is if i have a jerrold cable box in that TV is it possible to set it up on the outputs of that box... mine has two on the back.. red and yellow colored... tried yellow and red wires but it didnt work... is it possible? and if it is should the TV be in a special channel or something? could u help me?