Sorry to hear about your problem. I will be happy to help but need more information to give you the correct answer (the more details you provide the faster we can solve your problem):
1. What is the full model number of the Tv?
2. Who is your cable company?
3. What is the cable box model number?
Please reply here to this topic.
Without a motorola model number, I am guessing. Generally the coax cable from the wall connects to the motorola box RF input. Then hdmi connects from motorola box to Tv. If the motorola box is not hd then connect the yellow (video) plus red/white (audio) from the box to the Tv. Then select the correct Input on the Tv. For more details you must provide the details of the motorola box. I am here to help so if you want more information or need further assistance simply reply here to this topic. Please do not relist your question and please do not walk away without responding or clicking accept. If this information has helped you at all then please click accept. Thank you for coming here to get your answer.
What is the cable box model number?