Hi Andy, Thank you for reaching out to us. If you’re not receiving all channels, first ensure that your coaxial cable is securely connected to the TV. Then, run Auto Program: Home > Menu > Settings > All Settings > Broadcasting > Auto Program. Select Start to begin auto-programming, and then select either Air, Cable, or Both. - Select Air if you're using an antenna only. - Select Cable if you're using a cable box only. - Select Both if you're using an antenna and a cable box. You will get the most channels this way. If you're still having difficulties, please reach us on Facebook or Chat with us on the Samsung website. You can also reach us at 1-800-SAMSUNG / Available 8AM - 12AM EST, 7 days a week. ~Samsung Advisor

Hi Judy, We appreciate your review of the DU7200 TV. To learn how to use your Samsung remote and understand the settings on your TV, please use your remote to access the remote guide. Go to Home> (left directional button) Settings> Support> Remote Control Guide. If you need more help, Samsung is here for you. Please call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~Samsung Advisor