Solution
on tv the cable boxes used to output to channel three or four. set the tv to over air input and see if anything pops up on channel three or four. then try setting the input to cable. if your using red white and yellow inputs from a cable box try setting the tv to aux or hdmi intput one...two or three depending how many inputs the tv has.
on tv the cable boxes used to output to channel three or four. set the tv to over air input and see if anything pops up on channel three or four. then try setting the input to cable. if your using red white and yellow inputs from a cable box try setting the tv to aux or hdmi intput one...two or three depending how many inputs the tv has.
 
Solution